diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6d58dcf
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+.bundle
+bayesdata.yml
diff --git a/.ruby-version b/.ruby-version
new file mode 100644
index 0000000..ac2cdeb
--- /dev/null
+++ b/.ruby-version
@@ -0,0 +1 @@
+2.1.3
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..27e53de
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,10 @@
+# Revisions
+##0.5.0
+* Lots of refactoring, cleanup, making methods private, etc.
+* Added tests
+* Removed uid from train/untrain - couldn't think of a good use case, and the logic didn't seem right since the system doesn't keep track of which call to train created a token the untrain option would blindly remove them.
+* Changed BayesData to BayesPool since that seems more explanatory
+* Moved some pool manipulation functions into BayesPool for better encapsulation
+* Add to_json method
+* Removed data_class from Bayes initializer since I couldn't think of a reason to make that configurable
+* Create corpus in build cache instead of maintaining it in parallel
\ No newline at end of file
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..20d40b6
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
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+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
\ No newline at end of file
diff --git a/COPYING.LESSER b/COPYING.LESSER
new file mode 100644
index 0000000..20d40b6
--- /dev/null
+++ b/COPYING.LESSER
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
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+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+  Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
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+avoid the special danger that patents applied to a free program could
+make it effectively proprietary.  To prevent this, the GPL assures that
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+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+  0. Definitions.
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+  "This License" refers to version 3 of the GNU General Public License.
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+  "Copyright" also means copyright-like laws that apply to other kinds of
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+  The "source code" for a work means the preferred form of the work
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+  2. Basic Permissions.
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+  All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met.  This License explicitly affirms your unlimited
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+  You may make, run and propagate covered works that you do not
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+  You may convey verbatim copies of the Program's source code as you
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+  You may charge any price or no price for each copy that you convey,
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+  You may convey a covered work in object code form under the terms
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+  7. Additional Terms.
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+  "Additional permissions" are terms that supplement the terms of this
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+Additional permissions that are applicable to the entire Program shall
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+  9. Acceptance Not Required for Having Copies.
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+  You are not required to accept this License in order to receive or
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+  10. Automatic Licensing of Downstream Recipients.
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+  Each time you convey a covered work, the recipient automatically
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+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
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+hereafter acquired, that would be infringed by some manner, permitted
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+  A patent license is "discriminatory" if it does not include within
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+
+  Nothing in this License shall be construed as excluding or limiting
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+
+  12. No Surrender of Others' Freedom.
+
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+  13. Use with the GNU Affero General Public License.
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+  If the Program specifies that a proxy can decide which future
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+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
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+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
\ No newline at end of file
diff --git a/Gemfile b/Gemfile
new file mode 100644
index 0000000..3c05cb9
--- /dev/null
+++ b/Gemfile
@@ -0,0 +1,7 @@
+source 'http://rubygems.org'
+ruby '2.1.3'
+gem 'stemmer'
+
+group :test do
+  gem 'minitest'
+end
diff --git a/Gemfile.lock b/Gemfile.lock
new file mode 100644
index 0000000..21b10ec
--- /dev/null
+++ b/Gemfile.lock
@@ -0,0 +1,12 @@
+GEM
+  remote: http://rubygems.org/
+  specs:
+    minitest (5.4.2)
+    stemmer (1.0.1)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  minitest
+  stemmer
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..3688827
--- /dev/null
+++ b/README.md
@@ -0,0 +1,40 @@
+# Introduction
+This is a Naive Bayes classifier that can be used to categorize text based on trained "pools".
+Training counts how often each word is used, except for any specified stop words.
+The Bayes::Bishop.guess method tokenizes the message and then calculates for each pool the probability that the message is the same "classification" as that pool.
+For example, you could train the system with one pool of "spam" email and one pool of "non-spam" email.  Then you could ask the guess method which pool each incoming message belongs to.
+
+# Usage
+1. Create a Bishop::Bayes object:
+
+	b = Bishop::Bayes.new
+
+2. Train with multiple pools of text:
+
+	b.train('pool1')  
+	b.train('pool2')  
+	b.train('pool3')  
+       
+3. Call the guess method with a message to categorize:
+
+	guesses = b.guess('This is a sentence')
+       
+   The return value is a hash where the keys are pool names and the values are the probability
+   that the message belongs to that pool.  
+
+# Features
+* Stop words may be specified
+
+	b.add_stop_words(an_array_words)  
+	b.add_stop_word('word')  
+       
+* You can include the default stop words list  
+  
+	b.load_default_stop_words  
+       
+* You can choose between the default tokenizer, a stemming tokenizer, or a custom tokenizer
+
+	b = Bishop::Bayes.new
+	b = Bishop::Bayes.new(Bishop::StemmingTokenizer)
+	b = Bishop::Bayes.new(CustomTokenizer)
+
diff --git a/Rakefile b/Rakefile
new file mode 100644
index 0000000..2eb8847
--- /dev/null
+++ b/Rakefile
@@ -0,0 +1,30 @@
+require 'rake/testtask'
+require 'rdoc/task'
+
+#desc "Default task: test"
+task :default => [:test]
+
+desc "Run Tests"
+Rake::TestTask.new( :test ) do |t|
+  t.pattern = "test/test_*.rb"
+  t.verbose = true
+end
+
+RDoc::Task.new(:rdoc) do |rdoc|
+  rdoc.main = 'README.md'
+  rdoc.rdoc_files.include 'README.md', 'CHANGELOG.md', "lib/**/*\.rb" 
+  rdoc.rdoc_dir = 'docs/rdoc'
+  rdoc.title = "Bayes::Bishop Documentation"
+  rdoc.options << '--line-numbers'
+  rdoc.options << '--fileboxes'
+end
+
+RDoc::Task.new(:rdoc => "rdoc_markdown",:clobber_rdoc => "clobber_rdoc_markdown", :rerdoc => "rerdoc_markdown") do |rdoc|
+  rdoc.main = 'README.md'
+  rdoc.rdoc_files.include 'README.md', 'CHANGELOG.md', "lib/**/*\.rb" 
+  rdoc.rdoc_dir = 'docs/md'
+  rdoc.title = "Bayes::Bishop Documentation"
+  rdoc.markup = 'MARKUP' 
+  rdoc.options << '--line-numbers'
+  rdoc.options << '--fileboxes'
+end
\ No newline at end of file
diff --git a/bishop.gemspec b/bishop.gemspec
index 1e4f7e6..b1ba8f2 100755
--- a/bishop.gemspec
+++ b/bishop.gemspec
@@ -2,21 +2,21 @@ require 'rubygems'
 
 SPEC = Gem::Specification.new do |s|
 	s.name			=		"bishop"
-	s.version		=		"0.4.0"
-	s.author		=		"Matt Mower"
-	s.email			=		"self@mattmower.com"
-	s.homepage		=		"http://rubyforge.org/projects/bishop/"
+	s.version		=		"0.5.0"
+	s.author		=		"Richard Harrington"
+	s.email			=		"richard@maymount.com"
+  s.license  = 'LGPL-3.0+'
+	s.homepage		=		"https://github.com/maymount/bishop"
 	s.platform		=		Gem::Platform::RUBY
-	s.summary		=		"Bayesian classification and ART-2 clustering library."
-	
-	candidates		=		Dir.glob( "{bin,docs,lib,test}/**/*" )
+	s.summary		=		"Bayesian classification library. Refactoring of mmowers/bishop version."
+	s.description		=		"Bayesian classification library. Refactoring of mmowers/bishop version."
+	s.add_runtime_dependency 'stemmer'
+	candidates		=		Dir.glob( "{docs,lib,test}/**/*" )
 	
 	s.files 		=		candidates.delete_if do |item|
 								item.include?( "CVS" ) || item.include?( "rdoc" )
 							end
+  s.extra_rdoc_files = ['README.md','CHANGELOG.md','COPYING','COPYING.LESSER']
 	s.require_path	=		"lib"
-# 	s.autorequire	=		"bishop"
 	s.has_rdoc		=		true
-	
-	#s.add_dependency( "stemmer", ">= 1.0.1" )
 end
\ No newline at end of file
diff --git a/docs/md/Bishop.html b/docs/md/Bishop.html
new file mode 100644
index 0000000..030df55
--- /dev/null
+++ b/docs/md/Bishop.html
@@ -0,0 +1,202 @@
+<!DOCTYPE html>
+
+<html>
+<head>
+<meta charset="UTF-8">
+
+<title>module Bishop - Bayes::Bishop Documentation</title>
+
+<link href="./fonts.css" rel="stylesheet">
+<link href="./rdoc.css" rel="stylesheet">
+
+<script type="text/javascript">
+  var rdoc_rel_prefix = "./";
+</script>
+
+<script src="./js/jquery.js"></script>
+<script src="./js/navigation.js"></script>
+<script src="./js/search_index.js"></script>
+<script src="./js/search.js"></script>
+<script src="./js/searcher.js"></script>
+<script src="./js/darkfish.js"></script>
+
+
+<body id="top" role="document" class="module">
+<nav role="navigation">
+  <div id="project-navigation">
+    <div id="home-section" role="region" title="Quick navigation" class="nav-section">
+  <h2>
+    <a href="./index.html" rel="home">Home</a>
+  </h2>
+
+  <div id="table-of-contents-navigation">
+    <a href="./table_of_contents.html#pages">Pages</a>
+    <a href="./table_of_contents.html#classes">Classes</a>
+    <a href="./table_of_contents.html#methods">Methods</a>
+  </div>
+</div>
+
+    <div id="search-section" role="search" class="project-section initially-hidden">
+  <form action="#" method="get" accept-charset="utf-8">
+    <div id="search-field-wrapper">
+      <input id="search-field" role="combobox" aria-label="Search"
+             aria-autocomplete="list" aria-controls="search-results"
+             type="text" name="search" placeholder="Search" spellcheck="false"
+             title="Type to search, Up and Down to navigate, Enter to load">
+    </div>
+
+    <ul id="search-results" aria-label="Search Results"
+        aria-busy="false" aria-expanded="false"
+        aria-atomic="false" class="initially-hidden"></ul>
+  </form>
+</div>
+
+  </div>
+
+  
+
+  <div id="class-metadata">
+    
+    
+    
+    
+    <!-- Method Quickref -->
+<div id="method-list-section" class="nav-section">
+  <h3>Methods</h3>
+
+  <ul class="link-list" role="directory">
+    
+    <li ><a href="#method-c-robinson">::robinson</a>
+    
+    <li ><a href="#method-c-robinson_fisher">::robinson_fisher</a>
+    
+  </ul>
+</div>
+
+  </div>
+</nav>
+
+<main role="main" aria-labelledby="module-Bishop">
+  <h1 id="module-Bishop" class="module">
+    module Bishop
+  </h1>
+
+  <section class="description">
+    
+  </section>
+
+  
+  
+  
+  <section id="5Buntitled-5D" class="documentation-section">
+    
+
+    
+
+    
+
+    
+
+    
+     <section id="public-class-5Buntitled-5D-method-details" class="method-section">
+       <header>
+         <h3>Public Class Methods</h3>
+       </header>
+
+    
+      <div id="method-c-robinson" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">robinson</span><span
+            class="method-args">( probs, ignore )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>default “combiner” set in initialize ignore is truly ignored</p>
+          
+          
+
+          
+          <div class="method-source-code" id="robinson-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 419</span>
+<span class="ruby-keyword">def</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">robinson</span>( <span class="ruby-identifier">probs</span>, <span class="ruby-identifier">ignore</span> )
+  <span class="ruby-identifier">nth</span> = <span class="ruby-value">1.0</span><span class="ruby-operator">/</span><span class="ruby-identifier">probs</span>.<span class="ruby-identifier">length</span>
+  <span class="ruby-identifier">what_is_p</span> = <span class="ruby-value">1.0</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">probs</span>.<span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">p</span><span class="ruby-operator">|</span> <span class="ruby-value">1.0</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">p</span>[<span class="ruby-value">1</span>] }.<span class="ruby-identifier">inject</span>( <span class="ruby-value">1.0</span> ) { <span class="ruby-operator">|</span><span class="ruby-identifier">s</span>,<span class="ruby-identifier">v</span><span class="ruby-operator">|</span> <span class="ruby-identifier">s</span> <span class="ruby-operator">*</span> <span class="ruby-identifier">v</span> } <span class="ruby-operator">**</span> <span class="ruby-identifier">nth</span>
+  <span class="ruby-identifier">what_is_q</span> = <span class="ruby-value">1.0</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">probs</span>.<span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">p</span><span class="ruby-operator">|</span> <span class="ruby-identifier">p</span>[<span class="ruby-value">1</span>] }.<span class="ruby-identifier">inject</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">s</span>,<span class="ruby-identifier">v</span><span class="ruby-operator">|</span> <span class="ruby-identifier">s</span> <span class="ruby-operator">*</span> <span class="ruby-identifier">v</span> } <span class="ruby-operator">**</span> <span class="ruby-identifier">nth</span>
+  <span class="ruby-identifier">what_is_s</span> = ( <span class="ruby-identifier">what_is_p</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">what_is_q</span> ) <span class="ruby-operator">/</span> ( <span class="ruby-identifier">what_is_p</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">what_is_q</span> )
+  ( <span class="ruby-value">1</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">what_is_s</span> ) <span class="ruby-operator">/</span> <span class="ruby-value">2</span>
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-c-robinson_fisher" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">robinson_fisher</span><span
+            class="method-args">( probs, ignore )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Alternative combiner</p>
+          
+          
+
+          
+          <div class="method-source-code" id="robinson_fisher-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 428</span>
+<span class="ruby-keyword">def</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">robinson_fisher</span>( <span class="ruby-identifier">probs</span>, <span class="ruby-identifier">ignore</span> )
+  <span class="ruby-identifier">n</span> = <span class="ruby-identifier">probs</span>.<span class="ruby-identifier">length</span>
+  
+  <span class="ruby-keyword">begin</span>
+    <span class="ruby-identifier">h</span> = <span class="ruby-identifier">chi2p</span>( <span class="ruby-value">-2.0</span> <span class="ruby-operator">*</span> <span class="ruby-constant">Math</span>.<span class="ruby-identifier">log</span>( <span class="ruby-identifier">probs</span>.<span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">p</span><span class="ruby-operator">|</span> <span class="ruby-identifier">p</span>[<span class="ruby-value">1</span>] }.<span class="ruby-identifier">inject</span>( <span class="ruby-value">1.0</span> ) { <span class="ruby-operator">|</span><span class="ruby-identifier">s</span>,<span class="ruby-identifier">v</span><span class="ruby-operator">|</span> <span class="ruby-identifier">s</span><span class="ruby-operator">*</span><span class="ruby-identifier">v</span> } ), <span class="ruby-value">2</span><span class="ruby-operator">*</span><span class="ruby-identifier">n</span> )
+  <span class="ruby-keyword">rescue</span>
+    <span class="ruby-identifier">h</span> = <span class="ruby-value">0.0</span>
+  <span class="ruby-keyword">end</span>
+
+  <span class="ruby-keyword">begin</span>      
+    <span class="ruby-identifier">s</span> = <span class="ruby-identifier">chi2p</span>( <span class="ruby-value">-2.0</span> <span class="ruby-operator">*</span> <span class="ruby-constant">Math</span>.<span class="ruby-identifier">log</span>( <span class="ruby-identifier">probs</span>.<span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">p</span><span class="ruby-operator">|</span> <span class="ruby-value">1.0</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">p</span>[<span class="ruby-value">1</span>] }.<span class="ruby-identifier">inject</span>( <span class="ruby-value">1.0</span> ) { <span class="ruby-operator">|</span><span class="ruby-identifier">s</span>,<span class="ruby-identifier">v</span><span class="ruby-operator">|</span> <span class="ruby-identifier">s</span><span class="ruby-operator">*</span><span class="ruby-identifier">v</span> } ), <span class="ruby-value">2</span><span class="ruby-operator">*</span><span class="ruby-identifier">n</span> )
+  <span class="ruby-keyword">rescue</span>
+    <span class="ruby-identifier">s</span> = <span class="ruby-value">0.0</span>
+  <span class="ruby-keyword">end</span>
+  
+  ( <span class="ruby-value">1</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">h</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">s</span> ) <span class="ruby-operator">/</span> <span class="ruby-value">2</span>
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+    </section>
+  
+  </section>
+</main>
+
+
+<footer id="validator-badges" role="contentinfo">
+  <p><a href="http://validator.w3.org/check/referer">Validate</a>
+  <p>Generated by <a href="http://rdoc.rubyforge.org">RDoc</a> 4.1.0.
+  <p>Based on <a href="http://deveiate.org/projects/Darkfish-Rdoc/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>.
+</footer>
+
diff --git a/docs/md/Bishop/Bayes.html b/docs/md/Bishop/Bayes.html
new file mode 100644
index 0000000..3ac61bd
--- /dev/null
+++ b/docs/md/Bishop/Bayes.html
@@ -0,0 +1,894 @@
+<!DOCTYPE html>
+
+<html>
+<head>
+<meta charset="UTF-8">
+
+<title>class Bishop::Bayes - Bayes::Bishop Documentation</title>
+
+<link href="../fonts.css" rel="stylesheet">
+<link href="../rdoc.css" rel="stylesheet">
+
+<script type="text/javascript">
+  var rdoc_rel_prefix = "../";
+</script>
+
+<script src="../js/jquery.js"></script>
+<script src="../js/navigation.js"></script>
+<script src="../js/search_index.js"></script>
+<script src="../js/search.js"></script>
+<script src="../js/searcher.js"></script>
+<script src="../js/darkfish.js"></script>
+
+
+<body id="top" role="document" class="class">
+<nav role="navigation">
+  <div id="project-navigation">
+    <div id="home-section" role="region" title="Quick navigation" class="nav-section">
+  <h2>
+    <a href="../index.html" rel="home">Home</a>
+  </h2>
+
+  <div id="table-of-contents-navigation">
+    <a href="../table_of_contents.html#pages">Pages</a>
+    <a href="../table_of_contents.html#classes">Classes</a>
+    <a href="../table_of_contents.html#methods">Methods</a>
+  </div>
+</div>
+
+    <div id="search-section" role="search" class="project-section initially-hidden">
+  <form action="#" method="get" accept-charset="utf-8">
+    <div id="search-field-wrapper">
+      <input id="search-field" role="combobox" aria-label="Search"
+             aria-autocomplete="list" aria-controls="search-results"
+             type="text" name="search" placeholder="Search" spellcheck="false"
+             title="Type to search, Up and Down to navigate, Enter to load">
+    </div>
+
+    <ul id="search-results" aria-label="Search Results"
+        aria-busy="false" aria-expanded="false"
+        aria-atomic="false" class="initially-hidden"></ul>
+  </form>
+</div>
+
+  </div>
+
+  
+
+  <div id="class-metadata">
+    
+    <div id="parent-class-section" class="nav-section">
+  <h3>Parent</h3>
+
+  
+  <p class="link">Object
+  
+</div>
+
+    
+    
+    <!-- Method Quickref -->
+<div id="method-list-section" class="nav-section">
+  <h3>Methods</h3>
+
+  <ul class="link-list" role="directory">
+    
+    <li ><a href="#method-c-new">::new</a>
+    
+    <li ><a href="#method-i-add_stop_word">#add_stop_word</a>
+    
+    <li ><a href="#method-i-add_stop_words">#add_stop_words</a>
+    
+    <li ><a href="#method-i-guess">#guess</a>
+    
+    <li ><a href="#method-i-load_default_stop_words">#load_default_stop_words</a>
+    
+    <li ><a href="#method-i-load_stop_words">#load_stop_words</a>
+    
+    <li ><a href="#method-i-load_yaml">#load_yaml</a>
+    
+    <li ><a href="#method-i-merge_pools">#merge_pools</a>
+    
+    <li ><a href="#method-i-new_pool">#new_pool</a>
+    
+    <li ><a href="#method-i-pool">#pool</a>
+    
+    <li ><a href="#method-i-pool_names">#pool_names</a>
+    
+    <li ><a href="#method-i-remove_pool">#remove_pool</a>
+    
+    <li ><a href="#method-i-rename_pool">#rename_pool</a>
+    
+    <li ><a href="#method-i-save_yaml">#save_yaml</a>
+    
+    <li ><a href="#method-i-to_json">#to_json</a>
+    
+    <li ><a href="#method-i-to_yaml">#to_yaml</a>
+    
+    <li ><a href="#method-i-train">#train</a>
+    
+    <li ><a href="#method-i-trained_on-3F">#trained_on?</a>
+    
+    <li ><a href="#method-i-untrain">#untrain</a>
+    
+  </ul>
+</div>
+
+  </div>
+</nav>
+
+<main role="main" aria-labelledby="class-Bishop::Bayes">
+  <h1 id="class-Bishop::Bayes" class="class">
+    class Bishop::Bayes
+  </h1>
+
+  <section class="description">
+    
+  </section>
+
+  
+  
+  
+  <section id="5Buntitled-5D" class="documentation-section">
+    
+
+    
+
+    
+
+    
+    <section class="attribute-method-details" class="method-section">
+      <header>
+        <h3>Attributes</h3>
+      </header>
+
+      
+      <div id="attribute-i-combiner" class="method-detail">
+        <div class="method-heading attribute-method-heading">
+          <span class="method-name">combiner</span><span
+            class="attribute-access-type">[RW]</span>
+        </div>
+
+        <div class="method-description">
+        
+        <p>Block called to combine probabilities.  Set to <a
+href="../Bishop.html#method-c-robinson">Bishop.robinson</a> by default</p>
+        
+        </div>
+      </div>
+      
+      <div id="attribute-i-stop_words" class="method-detail">
+        <div class="method-heading attribute-method-heading">
+          <span class="method-name">stop_words</span><span
+            class="attribute-access-type">[R]</span>
+        </div>
+
+        <div class="method-description">
+        
+        <p>An array containing stop words that the tokenizer will ignore</p>
+        
+        </div>
+      </div>
+      
+      <div id="attribute-i-tokenizer" class="method-detail">
+        <div class="method-heading attribute-method-heading">
+          <span class="method-name">tokenizer</span><span
+            class="attribute-access-type">[RW]</span>
+        </div>
+
+        <div class="method-description">
+        
+        <p>instance of Tokenizer that handles tokenization</p>
+        
+        </div>
+      </div>
+      
+    </section>
+    
+
+    
+     <section id="public-class-5Buntitled-5D-method-details" class="method-section">
+       <header>
+         <h3>Public Class Methods</h3>
+       </header>
+
+    
+      <div id="method-c-new" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">new</span><span
+            class="method-args">( tokenizer = SimpleTokenizer, &combiner )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>tokenizer is the name of the class that will separate the input into
+tokens.  See <a href="SimpleTokenizer.html">SimpleTokenizer</a> and <a
+href="StemmingTokenizer.html">StemmingTokenizer</a> for more information.
+Combiner defaults to a block that calls <a
+href="../Bishop.html#method-c-robinson">Bishop.robinson</a></p>
+          
+          
+
+          
+          <div class="method-source-code" id="new-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 139</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">initialize</span>( <span class="ruby-identifier">tokenizer</span> = <span class="ruby-constant">SimpleTokenizer</span>, <span class="ruby-operator">&amp;</span><span class="ruby-identifier">combiner</span> )
+  <span class="ruby-ivar">@tokenizer</span> = <span class="ruby-identifier">tokenizer</span>.<span class="ruby-identifier">new</span>
+  <span class="ruby-ivar">@combiner</span> = <span class="ruby-identifier">combiner</span> <span class="ruby-operator">||</span> <span class="ruby-constant">Proc</span>.<span class="ruby-identifier">new</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">probs</span>,<span class="ruby-identifier">ignore</span><span class="ruby-operator">|</span> <span class="ruby-constant">Bishop</span>.<span class="ruby-identifier">robinson</span>( <span class="ruby-identifier">probs</span>, <span class="ruby-identifier">ignore</span> ) }
+  <span class="ruby-ivar">@pools</span> = {} <span class="ruby-comment"># hash, key = pool name, value = BayesPool class
</span>
+  <span class="ruby-ivar">@cache</span> = {} <span class="ruby-comment"># created by calling build_cache, contains raw probabilities
</span>
+  <span class="ruby-ivar">@corpus_data</span> = <span class="ruby-keyword">nil</span> <span class="ruby-comment"># created when corpus method is called, contains token totals
</span>
+  <span class="ruby-ivar">@dirty</span> = <span class="ruby-keyword">true</span> <span class="ruby-comment"># indicates that cache and corpus_data are invalid
</span>
+  <span class="ruby-ivar">@stop_words</span> = []
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+    </section>
+  
+     <section id="public-instance-5Buntitled-5D-method-details" class="method-section">
+       <header>
+         <h3>Public Instance Methods</h3>
+       </header>
+
+    
+      <div id="method-i-add_stop_word" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">add_stop_word</span><span
+            class="method-args">( word )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Add the specified stop word</p>
+          
+          
+
+          
+          <div class="method-source-code" id="add_stop_word-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 199</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">add_stop_word</span>( <span class="ruby-identifier">word</span> )
+  <span class="ruby-ivar">@stop_words</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">word</span>.<span class="ruby-identifier">downcase</span> <span class="ruby-keyword">if</span> <span class="ruby-operator">!</span><span class="ruby-ivar">@stop_words</span>.<span class="ruby-identifier">include?</span>(<span class="ruby-identifier">word</span>.<span class="ruby-identifier">downcase</span>)
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-add_stop_words" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">add_stop_words</span><span
+            class="method-args">( words )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Add an array of stop words</p>
+          
+          
+
+          
+          <div class="method-source-code" id="add_stop_words-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 194</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">add_stop_words</span>( <span class="ruby-identifier">words</span> )
+  <span class="ruby-identifier">words</span>.<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">word</span><span class="ruby-operator">|</span> <span class="ruby-identifier">add_stop_word</span> <span class="ruby-identifier">word</span> <span class="ruby-keyword">if</span> <span class="ruby-operator">!</span><span class="ruby-identifier">word</span>.<span class="ruby-identifier">empty?</span> }
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-guess" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">guess</span><span
+            class="method-args">( msg )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Call this method to classify a “message”.  The return value will be a hash,
+with the pool name is the key and the probability is the value, for each
+pool which is a likely match for the message.</p>
+          
+          
+
+          
+          <div class="method-source-code" id="guess-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 302</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">guess</span>( <span class="ruby-identifier">msg</span> )
+  <span class="ruby-identifier">tokens</span> = <span class="ruby-identifier">get_tokens</span>( <span class="ruby-identifier">msg</span> )
+  <span class="ruby-identifier">res</span> = {}
+  
+  <span class="ruby-identifier">build_cache</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">dirty?</span>
+  
+  <span class="ruby-ivar">@cache</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">pool_name</span>,<span class="ruby-identifier">pool</span><span class="ruby-operator">|</span>
+    <span class="ruby-identifier">p</span> = <span class="ruby-identifier">get_probs</span>( <span class="ruby-identifier">pool</span>, <span class="ruby-identifier">tokens</span> )
+    <span class="ruby-keyword">if</span> <span class="ruby-identifier">p</span>.<span class="ruby-identifier">length</span> <span class="ruby-operator">!=</span> <span class="ruby-value">0</span>
+      <span class="ruby-identifier">res</span>[<span class="ruby-identifier">pool_name</span>] = <span class="ruby-ivar">@combiner</span>.<span class="ruby-identifier">call</span>( <span class="ruby-identifier">p</span>, <span class="ruby-identifier">pool_name</span> )
+    <span class="ruby-keyword">end</span>    
+  <span class="ruby-keyword">end</span>
+  
+  <span class="ruby-identifier">h</span> = <span class="ruby-constant">Hash</span>.<span class="ruby-identifier">new</span>
+  <span class="ruby-identifier">res</span>.<span class="ruby-identifier">sort</span>.<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">a</span><span class="ruby-operator">|</span> <span class="ruby-identifier">h</span>[<span class="ruby-identifier">a</span>[<span class="ruby-value">0</span>]] = <span class="ruby-identifier">a</span>[<span class="ruby-value">1</span>] }
+  <span class="ruby-identifier">h</span>
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-load_default_stop_words" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">load_default_stop_words</span><span
+            class="method-args">()</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Load the default stop word list included with <a
+href="../Bishop.html">Bishop</a></p>
+          
+          
+
+          
+          <div class="method-source-code" id="load_default_stop_words-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 209</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">load_default_stop_words</span>
+  <span class="ruby-identifier">load_stop_words</span>( <span class="ruby-constant">File</span>.<span class="ruby-identifier">join</span>( <span class="ruby-constant">File</span>.<span class="ruby-identifier">dirname</span>( <span class="ruby-keyword">__FILE__</span> ), <span class="ruby-string">&#39;stopwords.yml&#39;</span> ) )
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-load_stop_words" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">load_stop_words</span><span
+            class="method-args">( source )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Load stopwords from the specified YAML formatted file</p>
+          
+          
+
+          
+          <div class="method-source-code" id="load_stop_words-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 204</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">load_stop_words</span>( <span class="ruby-identifier">source</span> )
+  <span class="ruby-constant">File</span>.<span class="ruby-identifier">open</span>( <span class="ruby-identifier">source</span> ) { <span class="ruby-operator">|</span><span class="ruby-identifier">f</span><span class="ruby-operator">|</span> <span class="ruby-identifier">add_stop_words</span>( <span class="ruby-constant">YAML</span>.<span class="ruby-identifier">load</span>( <span class="ruby-identifier">f</span> ) ) }
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-load_yaml" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">load_yaml</span><span
+            class="method-args">( file = 'bayesdata.yml' )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Load the current state from a YAML file, default = &#39;bayesdata.yml&#39;</p>
+          
+          
+
+          
+          <div class="method-source-code" id="load_yaml-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 258</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">load_yaml</span>( <span class="ruby-identifier">file</span> = <span class="ruby-string">&#39;bayesdata.yml&#39;</span> )
+  <span class="ruby-keyword">begin</span>
+    <span class="ruby-constant">File</span>.<span class="ruby-identifier">open</span>( <span class="ruby-identifier">file</span> ) { <span class="ruby-operator">|</span><span class="ruby-identifier">f</span><span class="ruby-operator">|</span> <span class="ruby-identifier">load_data</span>( <span class="ruby-identifier">f</span> ) }
+  <span class="ruby-keyword">rescue</span> <span class="ruby-constant">Errno</span><span class="ruby-operator">::</span><span class="ruby-constant">ENOENT</span>
+    <span class="ruby-comment"># File does not exist
</span>
+  <span class="ruby-keyword">end</span>
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-merge_pools" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">merge_pools</span><span
+            class="method-args">( dest_name, source_name )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Merge the contents of the source pool into the destination destination
+pool.</p>
+          
+          
+
+          
+          <div class="method-source-code" id="merge_pools-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 184</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">merge_pools</span>( <span class="ruby-identifier">dest_name</span>, <span class="ruby-identifier">source_name</span> )
+  <span class="ruby-ivar">@pools</span>[<span class="ruby-identifier">dest_name</span>].<span class="ruby-identifier">merge</span>(<span class="ruby-ivar">@pools</span>[<span class="ruby-identifier">source_name</span>])
+  <span class="ruby-ivar">@dirty</span> = <span class="ruby-keyword">true</span>  
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-new_pool" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">new_pool</span><span
+            class="method-args">( pool_name )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Create a new, empty, pool without training.</p>
+          
+          
+
+          
+          <div class="method-source-code" id="new_pool-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 165</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">new_pool</span>( <span class="ruby-identifier">pool_name</span> )
+  <span class="ruby-ivar">@dirty</span> = <span class="ruby-keyword">true</span>
+  <span class="ruby-ivar">@pools</span>[ <span class="ruby-identifier">pool_name</span> ] <span class="ruby-operator">||=</span> <span class="ruby-constant">BayesPool</span>.<span class="ruby-identifier">new</span>
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-pool" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">pool</span><span
+            class="method-args">(pool_name)</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Get the pool specified by name</p>
+          
+          
+
+          
+          <div class="method-source-code" id="pool-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 155</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">pool</span> <span class="ruby-identifier">pool_name</span>
+  <span class="ruby-ivar">@pools</span>[<span class="ruby-identifier">pool_name</span>]
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-pool_names" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">pool_names</span><span
+            class="method-args">()</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Get a list of pools</p>
+          
+          
+
+          
+          <div class="method-source-code" id="pool_names-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 160</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">pool_names</span>
+  <span class="ruby-ivar">@pools</span>.<span class="ruby-identifier">keys</span>.<span class="ruby-identifier">sort</span>
+      <span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-remove_pool" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">remove_pool</span><span
+            class="method-args">( pool_name )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Remove the given pool</p>
+          
+          
+
+          
+          <div class="method-source-code" id="remove_pool-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 171</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">remove_pool</span>( <span class="ruby-identifier">pool_name</span> )
+  <span class="ruby-ivar">@dirty</span> = <span class="ruby-keyword">true</span>
+  <span class="ruby-ivar">@pools</span>.<span class="ruby-identifier">delete</span>( <span class="ruby-identifier">pool_name</span> ) 
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-rename_pool" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">rename_pool</span><span
+            class="method-args">( pool_name, new_name )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Rename the given pool</p>
+          
+          
+
+          
+          <div class="method-source-code" id="rename_pool-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 177</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">rename_pool</span>( <span class="ruby-identifier">pool_name</span>, <span class="ruby-identifier">new_name</span> )
+  <span class="ruby-ivar">@pools</span>[<span class="ruby-identifier">new_name</span>] = <span class="ruby-ivar">@pools</span>[<span class="ruby-identifier">pool_name</span>]
+  <span class="ruby-ivar">@pools</span>.<span class="ruby-identifier">delete</span>( <span class="ruby-identifier">pool_name</span> )
+  <span class="ruby-ivar">@dirty</span> = <span class="ruby-keyword">true</span>
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-save_yaml" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">save_yaml</span><span
+            class="method-args">( file = 'bayesdata.yml' )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Save the current state to a YAML file, default = &#39;bayesdata.yml&#39;</p>
+          
+          
+
+          
+          <div class="method-source-code" id="save_yaml-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 253</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">save_yaml</span>( <span class="ruby-identifier">file</span> = <span class="ruby-string">&#39;bayesdata.yml&#39;</span> )
+  <span class="ruby-constant">File</span>.<span class="ruby-identifier">open</span>( <span class="ruby-identifier">file</span>, <span class="ruby-string">&#39;w&#39;</span> ) { <span class="ruby-operator">|</span><span class="ruby-identifier">f</span><span class="ruby-operator">|</span> <span class="ruby-identifier">f</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">to_yaml</span> }
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-to_json" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">to_json</span><span
+            class="method-args">()</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Gets the current state in JSON format</p>
+          
+          
+
+          
+          <div class="method-source-code" id="to_json-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 248</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">to_json</span>
+  <span class="ruby-constant">JSON</span>.<span class="ruby-identifier">pretty_generate</span>(<span class="ruby-identifier">export</span>)
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-to_yaml" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">to_yaml</span><span
+            class="method-args">()</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Gets the current state in YAML format</p>
+          
+          
+
+          
+          <div class="method-source-code" id="to_yaml-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 243</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">to_yaml</span>
+  <span class="ruby-identifier">export</span>.<span class="ruby-identifier">to_yaml</span>
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-train" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">train</span><span
+            class="method-args">( pool_name, input )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Train the specified pool with the given input.</p>
+
+<p>If the input is a string it is passed through the configured Tokenizer.
+Otherwise, if it is an array it is just added.</p>
+          
+          
+
+          
+          <div class="method-source-code" id="train-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 273</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">train</span>( <span class="ruby-identifier">pool_name</span>, <span class="ruby-identifier">input</span> )
+  <span class="ruby-identifier">tokens</span> = <span class="ruby-identifier">input</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">String</span>) <span class="ruby-operator">?</span> <span class="ruby-identifier">get_tokens</span>( <span class="ruby-identifier">input</span> ) <span class="ruby-operator">:</span> <span class="ruby-identifier">input</span>
+  <span class="ruby-identifier">pool</span> = <span class="ruby-identifier">new_pool</span>( <span class="ruby-identifier">pool_name</span> )
+  <span class="ruby-identifier">train_</span>( <span class="ruby-identifier">pool</span>, <span class="ruby-identifier">tokens</span> )
+  <span class="ruby-identifier">pool</span>.<span class="ruby-identifier">train_count</span> <span class="ruby-operator">+=</span> <span class="ruby-value">1</span>
+  <span class="ruby-ivar">@dirty</span> = <span class="ruby-keyword">true</span>
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-trained_on-3F" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">trained_on?</span><span
+            class="method-args">( token )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Returns true if the specified token has been trained for any pool</p>
+          
+          
+
+          
+          <div class="method-source-code" id="trained_on-3F-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 294</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">trained_on?</span>( <span class="ruby-identifier">token</span> )
+  <span class="ruby-identifier">build_cache</span> <span class="ruby-keyword">if</span> <span class="ruby-ivar">@dirty</span>
+  <span class="ruby-ivar">@cache</span>.<span class="ruby-identifier">values</span>.<span class="ruby-identifier">any?</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">v</span><span class="ruby-operator">|</span> <span class="ruby-identifier">v</span>.<span class="ruby-identifier">trained_on?</span> <span class="ruby-identifier">token</span> }
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-untrain" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">untrain</span><span
+            class="method-args">( pool_name, input )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Remove the input from the given pool If the input is a string it is passed
+through the configured Tokenizer. Otherwise, if it is an array it is just
+added.</p>
+          
+          
+
+          
+          <div class="method-source-code" id="untrain-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 284</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">untrain</span>( <span class="ruby-identifier">pool_name</span>, <span class="ruby-identifier">input</span> )
+  <span class="ruby-identifier">pool</span> = <span class="ruby-identifier">find_pool</span>( <span class="ruby-identifier">pool_name</span> )
+  <span class="ruby-keyword">return</span> <span class="ruby-keyword">if</span> <span class="ruby-operator">!</span><span class="ruby-identifier">pool</span>
+  <span class="ruby-identifier">tokens</span> = <span class="ruby-identifier">input</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">String</span>) <span class="ruby-operator">?</span> <span class="ruby-identifier">get_tokens</span>( <span class="ruby-identifier">input</span> ) <span class="ruby-operator">:</span> <span class="ruby-identifier">input</span>
+  <span class="ruby-identifier">untrain_</span>( <span class="ruby-identifier">pool</span>, <span class="ruby-identifier">tokens</span> )
+  <span class="ruby-identifier">pool</span>.<span class="ruby-identifier">train_count</span> <span class="ruby-operator">-=</span> <span class="ruby-value">1</span>
+  <span class="ruby-ivar">@dirty</span> = <span class="ruby-keyword">true</span>  
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+    </section>
+  
+  </section>
+</main>
+
+
+<footer id="validator-badges" role="contentinfo">
+  <p><a href="http://validator.w3.org/check/referer">Validate</a>
+  <p>Generated by <a href="http://rdoc.rubyforge.org">RDoc</a> 4.1.0.
+  <p>Based on <a href="http://deveiate.org/projects/Darkfish-Rdoc/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>.
+</footer>
+
diff --git a/docs/md/Bishop/SimpleTokenizer.html b/docs/md/Bishop/SimpleTokenizer.html
new file mode 100644
index 0000000..d0563f4
--- /dev/null
+++ b/docs/md/Bishop/SimpleTokenizer.html
@@ -0,0 +1,161 @@
+<!DOCTYPE html>
+
+<html>
+<head>
+<meta charset="UTF-8">
+
+<title>class Bishop::SimpleTokenizer - Bayes::Bishop Documentation</title>
+
+<link href="../fonts.css" rel="stylesheet">
+<link href="../rdoc.css" rel="stylesheet">
+
+<script type="text/javascript">
+  var rdoc_rel_prefix = "../";
+</script>
+
+<script src="../js/jquery.js"></script>
+<script src="../js/navigation.js"></script>
+<script src="../js/search_index.js"></script>
+<script src="../js/search.js"></script>
+<script src="../js/searcher.js"></script>
+<script src="../js/darkfish.js"></script>
+
+
+<body id="top" role="document" class="class">
+<nav role="navigation">
+  <div id="project-navigation">
+    <div id="home-section" role="region" title="Quick navigation" class="nav-section">
+  <h2>
+    <a href="../index.html" rel="home">Home</a>
+  </h2>
+
+  <div id="table-of-contents-navigation">
+    <a href="../table_of_contents.html#pages">Pages</a>
+    <a href="../table_of_contents.html#classes">Classes</a>
+    <a href="../table_of_contents.html#methods">Methods</a>
+  </div>
+</div>
+
+    <div id="search-section" role="search" class="project-section initially-hidden">
+  <form action="#" method="get" accept-charset="utf-8">
+    <div id="search-field-wrapper">
+      <input id="search-field" role="combobox" aria-label="Search"
+             aria-autocomplete="list" aria-controls="search-results"
+             type="text" name="search" placeholder="Search" spellcheck="false"
+             title="Type to search, Up and Down to navigate, Enter to load">
+    </div>
+
+    <ul id="search-results" aria-label="Search Results"
+        aria-busy="false" aria-expanded="false"
+        aria-atomic="false" class="initially-hidden"></ul>
+  </form>
+</div>
+
+  </div>
+
+  
+
+  <div id="class-metadata">
+    
+    <div id="parent-class-section" class="nav-section">
+  <h3>Parent</h3>
+
+  
+  <p class="link">Object
+  
+</div>
+
+    
+    
+    <!-- Method Quickref -->
+<div id="method-list-section" class="nav-section">
+  <h3>Methods</h3>
+
+  <ul class="link-list" role="directory">
+    
+    <li ><a href="#method-i-tokenize">#tokenize</a>
+    
+  </ul>
+</div>
+
+  </div>
+</nav>
+
+<main role="main" aria-labelledby="class-Bishop::SimpleTokenizer">
+  <h1 id="class-Bishop::SimpleTokenizer" class="class">
+    class Bishop::SimpleTokenizer
+  </h1>
+
+  <section class="description">
+    
+<p>A tokenizer class which splits words removing non word characters except
+hyphens.</p>
+
+  </section>
+
+  
+  
+  
+  <section id="5Buntitled-5D" class="documentation-section">
+    
+
+    
+
+    
+
+    
+
+    
+     <section id="public-instance-5Buntitled-5D-method-details" class="method-section">
+       <header>
+         <h3>Public Instance Methods</h3>
+       </header>
+
+    
+      <div id="method-i-tokenize" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">tokenize</span><span
+            class="method-args">( item, stop_words=[] )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          
+          
+          
+
+          
+          <div class="method-source-code" id="tokenize-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 107</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">tokenize</span>( <span class="ruby-identifier">item</span>, <span class="ruby-identifier">stop_words</span>=[] )
+  <span class="ruby-identifier">item</span>.<span class="ruby-identifier">split</span>( <span class="ruby-regexp">/\s+/</span> ).<span class="ruby-identifier">map</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">i</span><span class="ruby-operator">|</span>
+    <span class="ruby-identifier">i</span>.<span class="ruby-identifier">split</span>( <span class="ruby-regexp">/\-/</span> ).<span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">token</span><span class="ruby-operator">|</span> <span class="ruby-identifier">token</span>.<span class="ruby-identifier">downcase</span>.<span class="ruby-identifier">gsub</span>( <span class="ruby-regexp">/\W/</span>, <span class="ruby-string">&quot;&quot;</span> ) }.<span class="ruby-identifier">join</span>( <span class="ruby-string">&quot;-&quot;</span> )
+  <span class="ruby-keyword">end</span>.<span class="ruby-identifier">reject</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">t</span><span class="ruby-operator">|</span> <span class="ruby-identifier">t</span> <span class="ruby-operator">==</span> <span class="ruby-string">&quot;&quot;</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">t</span> <span class="ruby-operator">==</span> <span class="ruby-string">&quot;-&quot;</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">stop_words</span>.<span class="ruby-identifier">detect</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">w</span><span class="ruby-operator">|</span> <span class="ruby-identifier">w</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">t</span> } }
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+    </section>
+  
+  </section>
+</main>
+
+
+<footer id="validator-badges" role="contentinfo">
+  <p><a href="http://validator.w3.org/check/referer">Validate</a>
+  <p>Generated by <a href="http://rdoc.rubyforge.org">RDoc</a> 4.1.0.
+  <p>Based on <a href="http://deveiate.org/projects/Darkfish-Rdoc/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>.
+</footer>
+
diff --git a/docs/md/Bishop/StemmingTokenizer.html b/docs/md/Bishop/StemmingTokenizer.html
new file mode 100644
index 0000000..a86b6a5
--- /dev/null
+++ b/docs/md/Bishop/StemmingTokenizer.html
@@ -0,0 +1,164 @@
+<!DOCTYPE html>
+
+<html>
+<head>
+<meta charset="UTF-8">
+
+<title>class Bishop::StemmingTokenizer - Bayes::Bishop Documentation</title>
+
+<link href="../fonts.css" rel="stylesheet">
+<link href="../rdoc.css" rel="stylesheet">
+
+<script type="text/javascript">
+  var rdoc_rel_prefix = "../";
+</script>
+
+<script src="../js/jquery.js"></script>
+<script src="../js/navigation.js"></script>
+<script src="../js/search_index.js"></script>
+<script src="../js/search.js"></script>
+<script src="../js/searcher.js"></script>
+<script src="../js/darkfish.js"></script>
+
+
+<body id="top" role="document" class="class">
+<nav role="navigation">
+  <div id="project-navigation">
+    <div id="home-section" role="region" title="Quick navigation" class="nav-section">
+  <h2>
+    <a href="../index.html" rel="home">Home</a>
+  </h2>
+
+  <div id="table-of-contents-navigation">
+    <a href="../table_of_contents.html#pages">Pages</a>
+    <a href="../table_of_contents.html#classes">Classes</a>
+    <a href="../table_of_contents.html#methods">Methods</a>
+  </div>
+</div>
+
+    <div id="search-section" role="search" class="project-section initially-hidden">
+  <form action="#" method="get" accept-charset="utf-8">
+    <div id="search-field-wrapper">
+      <input id="search-field" role="combobox" aria-label="Search"
+             aria-autocomplete="list" aria-controls="search-results"
+             type="text" name="search" placeholder="Search" spellcheck="false"
+             title="Type to search, Up and Down to navigate, Enter to load">
+    </div>
+
+    <ul id="search-results" aria-label="Search Results"
+        aria-busy="false" aria-expanded="false"
+        aria-atomic="false" class="initially-hidden"></ul>
+  </form>
+</div>
+
+  </div>
+
+  
+
+  <div id="class-metadata">
+    
+    <div id="parent-class-section" class="nav-section">
+  <h3>Parent</h3>
+
+  
+  <p class="link"><a href="SimpleTokenizer.html">Bishop::SimpleTokenizer</a>
+  
+</div>
+
+    
+    
+    <!-- Method Quickref -->
+<div id="method-list-section" class="nav-section">
+  <h3>Methods</h3>
+
+  <ul class="link-list" role="directory">
+    
+    <li class="calls-super" ><a href="#method-i-tokenize">#tokenize</a>
+    
+  </ul>
+</div>
+
+  </div>
+</nav>
+
+<main role="main" aria-labelledby="class-Bishop::StemmingTokenizer">
+  <h1 id="class-Bishop::StemmingTokenizer" class="class">
+    class Bishop::StemmingTokenizer
+  </h1>
+
+  <section class="description">
+    
+<p>A tokenizer which, having split words, reduces them to porter stemmed
+tokens</p>
+
+  </section>
+
+  
+  
+  
+  <section id="5Buntitled-5D" class="documentation-section">
+    
+
+    
+
+    
+
+    
+
+    
+     <section id="public-instance-5Buntitled-5D-method-details" class="method-section">
+       <header>
+         <h3>Public Instance Methods</h3>
+       </header>
+
+    
+      <div id="method-i-tokenize" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">tokenize</span><span
+            class="method-args">( item, stop_words=[] )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          
+          
+          
+            <div class="method-calls-super">
+              Calls superclass method
+              <a href="SimpleTokenizer.html#method-i-tokenize">Bishop::SimpleTokenizer#tokenize</a>
+            </div>
+          
+
+          
+          <div class="method-source-code" id="tokenize-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 116</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">tokenize</span>( <span class="ruby-identifier">item</span>, <span class="ruby-identifier">stop_words</span>=[] )
+  <span class="ruby-keyword">super</span>( <span class="ruby-identifier">item</span>, <span class="ruby-identifier">stop_words</span> ).<span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">word</span><span class="ruby-operator">|</span> <span class="ruby-identifier">word</span>.<span class="ruby-identifier">stem</span> }
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+    </section>
+  
+  </section>
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+  <p>Based on <a href="http://deveiate.org/projects/Darkfish-Rdoc/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>.
+</footer>
+
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+
+<html>
+<head>
+<meta charset="UTF-8">
+
+<title>CHANGELOG - Bayes::Bishop Documentation</title>
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+  
+<div class="nav-section">
+  <h3>Table of Contents</h3>
+
+  <ul class="link-list" role="directory">
+    <li><a href="#label-Revisions">Revisions</a>
+    <li><a href="#label-0.5.0">0.5.0</a>
+  </ul>
+</div>
+
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+  <div id="project-metadata">
+    <div id="fileindex-section" class="nav-section">
+  <h3>Pages</h3>
+
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+  
+    <li><a href="./CHANGELOG_md.html">CHANGELOG</a>
+  
+    <li><a href="./README_md.html">README</a>
+  
+  </ul>
+</div>
+
+  </div>
+</nav>
+
+<main role="main" aria-label="Page CHANGELOG.md">
+
+<h1 id="label-Revisions">Revisions<span><a href="#label-Revisions">&para;</a> <a href="#documentation">&uarr;</a></span></h1>
+
+<h2 id="label-0.5.0">0.5.0<span><a href="#label-0.5.0">&para;</a> <a href="#documentation">&uarr;</a></span></h2>
+<ul><li>
+<p>Lots of refactoring, cleanup, making methods private, etc.</p>
+</li><li>
+<p>Added tests</p>
+</li><li>
+<p>Removed uid from train/untrain - couldn&#39;t think of a good use case, and
+the logic didn&#39;t seem right since the system doesn&#39;t keep track of
+which call to train created a token the untrain option would blindly remove
+them.</p>
+</li><li>
+<p>Changed BayesData to BayesPool since that seems more explanatory</p>
+</li><li>
+<p>Moved some pool manipulation functions into BayesPool for better
+encapsulation</p>
+</li><li>
+<p>Add to_json method</p>
+</li><li>
+<p>Removed data_class from Bayes initializer since I couldn&#39;t think of a
+reason to make that configurable</p>
+</li><li>
+<p>Create corpus in build cache instead of maintaining it in parallel</p>
+</li></ul>
+</main>
+
+
+
+<footer id="validator-badges" role="contentinfo">
+  <p><a href="http://validator.w3.org/check/referer">Validate</a>
+  <p>Generated by <a href="http://rdoc.rubyforge.org">RDoc</a> 4.1.0.
+  <p>Based on <a href="http://deveiate.org/projects/Darkfish-Rdoc/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>.
+</footer>
+
diff --git a/docs/md/README_md.html b/docs/md/README_md.html
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+<!DOCTYPE html>
+
+<html>
+<head>
+<meta charset="UTF-8">
+
+<title>README - Bayes::Bishop Documentation</title>
+
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+             title="Type to search, Up and Down to navigate, Enter to load">
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+
+  
+<div class="nav-section">
+  <h3>Table of Contents</h3>
+
+  <ul class="link-list" role="directory">
+    <li><a href="#label-Introduction">Introduction</a>
+    <li><a href="#label-Usage">Usage</a>
+    <li><a href="#label-Features">Features</a>
+  </ul>
+</div>
+
+
+  <div id="project-metadata">
+    <div id="fileindex-section" class="nav-section">
+  <h3>Pages</h3>
+
+  <ul class="link-list">
+  
+    <li><a href="./CHANGELOG_md.html">CHANGELOG</a>
+  
+    <li><a href="./README_md.html">README</a>
+  
+  </ul>
+</div>
+
+  </div>
+</nav>
+
+<main role="main" aria-label="Page README.md">
+
+<h1 id="label-Introduction">Introduction<span><a href="#label-Introduction">&para;</a> <a href="#documentation">&uarr;</a></span></h1>
+
+<p>This is a Naive Bayes classifier that can be used to categorize text based
+on trained “pools”. Training counts how often each word is used, except for
+any specified stop words. The Bayes::Bishop.guess method tokenizes the
+message and then calculates for each pool the probability that the message
+is the same “classification” as that pool. For example, you could train the
+system with one pool of “spam” email and one pool of “non-spam” email. Then
+you could ask the guess method which pool each incoming message belongs to.</p>
+
+<h1 id="label-Usage">Usage<span><a href="#label-Usage">&para;</a> <a href="#documentation">&uarr;</a></span></h1>
+<ol><li>
+<p>Create a <a href="Bishop/Bayes.html">Bishop::Bayes</a> object:</p>
+
+<pre>b = Bishop::Bayes.new</pre>
+</li><li>
+<p>Train with multiple pools of text:</p>
+
+<pre>b.train(&#39;pool1&#39;)  
+b.train(&#39;pool2&#39;)  
+b.train(&#39;pool3&#39;)</pre>
+</li><li>
+<p>Call the guess method with a message to categorize:</p>
+
+<pre>guesses = b.guess(&#39;This is a sentence&#39;)</pre>
+</li></ol>
+
+<p>The return value is a hash where the keys are pool names and the values are
+the probability  that the message belongs to that pool.</p>
+
+<h1 id="label-Features">Features<span><a href="#label-Features">&para;</a> <a href="#documentation">&uarr;</a></span></h1>
+<ul><li>
+<p>Stop words may be specified</p>
+
+<pre>b.add_stop_words(an_array_words)  
+b.add_stop_word(&#39;word&#39;)</pre>
+</li><li>
+<p>You can include the default stop words list</p>
+
+<pre>b.load_default_stop_words</pre>
+</li><li>
+<p>You can choose between the default tokenizer, a stemming tokenizer, or a
+custom tokenizer</p>
+
+<pre>b = Bishop::Bayes.new
+b = Bishop::Bayes.new(Bishop::StemmingTokenizer)
+b = Bishop::Bayes.new(CustomTokenizer)</pre>
+</li></ul>
+</main>
+
+
+
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+</footer>
+
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+Sun, 02 Nov 2014 22:30:34 -0800
+README.md	Sun, 02 Nov 2014 22:18:55 -0800
+CHANGELOG.md	Sun, 02 Nov 2014 21:13:42 -0800
+lib/bayes/bishop.rb	Sun, 02 Nov 2014 22:30:31 -0800
diff --git a/docs/md/fonts.css b/docs/md/fonts.css
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diff --git a/docs/md/index.html b/docs/md/index.html
new file mode 100644
index 0000000..15687e8
--- /dev/null
+++ b/docs/md/index.html
@@ -0,0 +1,149 @@
+<!DOCTYPE html>
+
+<html>
+<head>
+<meta charset="UTF-8">
+
+<title>Bayes::Bishop Documentation</title>
+
+<link href="./fonts.css" rel="stylesheet">
+<link href="./rdoc.css" rel="stylesheet">
+
+<script type="text/javascript">
+  var rdoc_rel_prefix = "./";
+</script>
+
+<script src="./js/jquery.js"></script>
+<script src="./js/navigation.js"></script>
+<script src="./js/search_index.js"></script>
+<script src="./js/search.js"></script>
+<script src="./js/searcher.js"></script>
+<script src="./js/darkfish.js"></script>
+
+
+<body id="top" role="document" class="file">
+<nav role="navigation">
+  <div id="project-navigation">
+    <div id="home-section" role="region" title="Quick navigation" class="nav-section">
+  <h2>
+    <a href="./index.html" rel="home">Home</a>
+  </h2>
+
+  <div id="table-of-contents-navigation">
+    <a href="./table_of_contents.html#pages">Pages</a>
+    <a href="./table_of_contents.html#classes">Classes</a>
+    <a href="./table_of_contents.html#methods">Methods</a>
+  </div>
+</div>
+
+
+    <div id="search-section" role="search" class="project-section initially-hidden">
+  <form action="#" method="get" accept-charset="utf-8">
+    <div id="search-field-wrapper">
+      <input id="search-field" role="combobox" aria-label="Search"
+             aria-autocomplete="list" aria-controls="search-results"
+             type="text" name="search" placeholder="Search" spellcheck="false"
+             title="Type to search, Up and Down to navigate, Enter to load">
+    </div>
+
+    <ul id="search-results" aria-label="Search Results"
+        aria-busy="false" aria-expanded="false"
+        aria-atomic="false" class="initially-hidden"></ul>
+  </form>
+</div>
+
+  </div>
+
+  <div id="project-metadata">
+    <div id="fileindex-section" class="nav-section">
+  <h3>Pages</h3>
+
+  <ul class="link-list">
+  
+    <li><a href="./CHANGELOG_md.html">CHANGELOG</a>
+  
+    <li><a href="./README_md.html">README</a>
+  
+  </ul>
+</div>
+
+    <div id="classindex-section" class="nav-section">
+  <h3>Class and Module Index</h3>
+
+  <ul class="link-list">
+  
+    <li><a href="./Bishop.html">Bishop</a>
+  
+    <li><a href="./Bishop/Bayes.html">Bishop::Bayes</a>
+  
+    <li><a href="./Bishop/SimpleTokenizer.html">Bishop::SimpleTokenizer</a>
+  
+    <li><a href="./Bishop/StemmingTokenizer.html">Bishop::StemmingTokenizer</a>
+  
+  </ul>
+</div>
+
+  </div>
+</nav>
+
+<main role="main">
+
+
+<h1 id="label-Introduction">Introduction<span><a href="#label-Introduction">&para;</a> <a href="#documentation">&uarr;</a></span></h1>
+
+<p>This is a Naive Bayes classifier that can be used to categorize text based
+on trained “pools”. Training counts how often each word is used, except for
+any specified stop words. The Bayes::Bishop.guess method tokenizes the
+message and then calculates for each pool the probability that the message
+is the same “classification” as that pool. For example, you could train the
+system with one pool of “spam” email and one pool of “non-spam” email. Then
+you could ask the guess method which pool each incoming message belongs to.</p>
+
+<h1 id="label-Usage">Usage<span><a href="#label-Usage">&para;</a> <a href="#documentation">&uarr;</a></span></h1>
+<ol><li>
+<p>Create a <a href="Bishop/Bayes.html">Bishop::Bayes</a> object:</p>
+
+<pre>b = Bishop::Bayes.new</pre>
+</li><li>
+<p>Train with multiple pools of text:</p>
+
+<pre>b.train(&#39;pool1&#39;)  
+b.train(&#39;pool2&#39;)  
+b.train(&#39;pool3&#39;)</pre>
+</li><li>
+<p>Call the guess method with a message to categorize:</p>
+
+<pre>guesses = b.guess(&#39;This is a sentence&#39;)</pre>
+</li></ol>
+
+<p>The return value is a hash where the keys are pool names and the values are
+the probability  that the message belongs to that pool.</p>
+
+<h1 id="label-Features">Features<span><a href="#label-Features">&para;</a> <a href="#documentation">&uarr;</a></span></h1>
+<ul><li>
+<p>Stop words may be specified</p>
+
+<pre>b.add_stop_words(an_array_words)  
+b.add_stop_word(&#39;word&#39;)</pre>
+</li><li>
+<p>You can include the default stop words list</p>
+
+<pre>b.load_default_stop_words</pre>
+</li><li>
+<p>You can choose between the default tokenizer, a stemming tokenizer, or a
+custom tokenizer</p>
+
+<pre>b = Bishop::Bayes.new
+b = Bishop::Bayes.new(Bishop::StemmingTokenizer)
+b = Bishop::Bayes.new(CustomTokenizer)</pre>
+</li></ul>
+</main>
+
+
+
+<footer id="validator-badges" role="contentinfo">
+  <p><a href="http://validator.w3.org/check/referer">Validate</a>
+  <p>Generated by <a href="http://rdoc.rubyforge.org">RDoc</a> 4.1.0.
+  <p>Based on <a href="http://deveiate.org/projects/Darkfish-Rdoc/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>.
+</footer>
+
diff --git a/docs/md/js/darkfish.js b/docs/md/js/darkfish.js
new file mode 100644
index 0000000..06fef3b
--- /dev/null
+++ b/docs/md/js/darkfish.js
@@ -0,0 +1,140 @@
+/**
+ *
+ * Darkfish Page Functions
+ * $Id: darkfish.js 53 2009-01-07 02:52:03Z deveiant $
+ *
+ * Author: Michael Granger <mgranger@laika.com>
+ *
+ */
+
+/* Provide console simulation for firebug-less environments */
+if (!("console" in window) || !("firebug" in console)) {
+  var names = ["log", "debug", "info", "warn", "error", "assert", "dir", "dirxml",
+    "group", "groupEnd", "time", "timeEnd", "count", "trace", "profile", "profileEnd"];
+
+  window.console = {};
+  for (var i = 0; i < names.length; ++i)
+    window.console[names[i]] = function() {};
+};
+
+
+/**
+ * Unwrap the first element that matches the given @expr@ from the targets and return them.
+ */
+$.fn.unwrap = function( expr ) {
+  return this.each( function() {
+    $(this).parents( expr ).eq( 0 ).after( this ).remove();
+  });
+};
+
+
+function showSource( e ) {
+  var target = e.target;
+  var codeSections = $(target).
+    parents('.method-detail').
+    find('.method-source-code');
+
+  $(target).
+    parents('.method-detail').
+    find('.method-source-code').
+    slideToggle();
+};
+
+function hookSourceViews() {
+  $('.method-heading').click( showSource );
+};
+
+function toggleDebuggingSection() {
+  $('.debugging-section').slideToggle();
+};
+
+function hookDebuggingToggle() {
+  $('#debugging-toggle img').click( toggleDebuggingSection );
+};
+
+function hookSearch() {
+  var input  = $('#search-field').eq(0);
+  var result = $('#search-results').eq(0);
+  $(result).show();
+
+  var search_section = $('#search-section').get(0);
+  $(search_section).show();
+
+  var search = new Search(search_data, input, result);
+
+  search.renderItem = function(result) {
+    var li = document.createElement('li');
+    var html = '';
+
+    // TODO add relative path to <script> per-page
+    html += '<p class="search-match"><a href="' + rdoc_rel_prefix + result.path + '">' + this.hlt(result.title);
+    if (result.params)
+      html += '<span class="params">' + result.params + '</span>';
+    html += '</a>';
+
+
+    if (result.namespace)
+      html += '<p class="search-namespace">' + this.hlt(result.namespace);
+
+    if (result.snippet)
+      html += '<div class="search-snippet">' + result.snippet + '</div>';
+
+    li.innerHTML = html;
+
+    return li;
+  }
+
+  search.select = function(result) {
+    var result_element = result.get(0);
+    window.location.href = result_element.firstChild.firstChild.href;
+  }
+
+  search.scrollIntoView = search.scrollInWindow;
+};
+
+function highlightTarget( anchor ) {
+  console.debug( "Highlighting target '%s'.", anchor );
+
+  $("a[name]").each( function() {
+    if ( $(this).attr("name") == anchor ) {
+      if ( !$(this).parent().parent().hasClass('target-section') ) {
+        console.debug( "Wrapping the target-section" );
+        $('div.method-detail').unwrap( 'div.target-section' );
+        $(this).parent().wrap( '<div class="target-section"></div>' );
+      } else {
+        console.debug( "Already wrapped." );
+      }
+    }
+  });
+};
+
+function highlightLocationTarget() {
+  console.debug( "Location hash: %s", window.location.hash );
+  if ( ! window.location.hash || window.location.hash.length == 0 ) return;
+
+  var anchor = window.location.hash.substring(1);
+  console.debug( "Found anchor: %s; matching %s", anchor, "a[name=" + anchor + "]" );
+
+  highlightTarget( anchor );
+};
+
+function highlightClickTarget( event ) {
+  console.debug( "Highlighting click target for event %o", event.target );
+  try {
+    var anchor = $(event.target).attr( 'href' ).substring(1);
+    console.debug( "Found target anchor: %s", anchor );
+    highlightTarget( anchor );
+  } catch ( err ) {
+    console.error( "Exception while highlighting: %o", err );
+  };
+};
+
+
+$(document).ready( function() {
+  hookSourceViews();
+  hookDebuggingToggle();
+  hookSearch();
+  highlightLocationTarget();
+
+  $('ul.link-list a').bind( "click", highlightClickTarget );
+});
diff --git a/docs/md/js/jquery.js b/docs/md/js/jquery.js
new file mode 100644
index 0000000..628ed9b
--- /dev/null
+++ b/docs/md/js/jquery.js
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m=f._data(k,"handle");c.currentTarget=k,m&&m.apply(k,d),l&&f.acceptData(k)&&k[l]&&k[l].apply(k,d)===!1&&(c.result=!1,c.preventDefault()),k=k.parentNode||k.ownerDocument||k===c.target.ownerDocument&&a}while(k&&!c.isPropagationStopped());if(!c.isDefaultPrevented()){var n,o=f.event.special[h]||{};if((!o._default||o._default.call(e.ownerDocument,c)===!1)&&(h!=="click"||!f.nodeName(e,"a"))&&f.acceptData(e)){try{l&&e[h]&&(n=e[l],n&&(e[l]=null),f.event.triggered=h,e[h]())}catch(p){}n&&(e[l]=n),f.event.triggered=b}}return c.result}},handle:function(c){c=f.event.fix(c||a.event);var d=((f._data(this,"events")||{})[c.type]||[]).slice(0),e=!c.exclusive&&!c.namespace,g=Array.prototype.slice.call(arguments,0);g[0]=c,c.currentTarget=this;for(var h=0,i=d.length;h<i;h++){var j=d[h];if(e||c.namespace_re.test(j.namespace)){c.handler=j.handler,c.data=j.data,c.handleObj=j;var 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a},guid:1e8,proxy:f.proxy,special:{ready:{setup:f.bindReady,teardown:f.noop},live:{add:function(a){f.event.add(this,M(a.origType,a.selector),f.extend({},a,{handler:L,guid:a.handler.guid}))},remove:function(a){f.event.remove(this,M(a.origType,a.selector),a)}},beforeunload:{setup:function(a,b,c){f.isWindow(this)&&(this.onbeforeunload=c)},teardown:function(a,b){this.onbeforeunload===b&&(this.onbeforeunload=null)}}}},f.removeEvent=c.removeEventListener?function(a,b,c){a.removeEventListener&&a.removeEventListener(b,c,!1)}:function(a,b,c){a.detachEvent&&a.detachEvent("on"+b,c)},f.Event=function(a,b){if(!this.preventDefault)return new f.Event(a,b);a&&a.type?(this.originalEvent=a,this.type=a.type,this.isDefaultPrevented=a.defaultPrevented||a.returnValue===!1||a.getPreventDefault&&a.getPreventDefault()?D:C):this.type=a,b&&f.extend(this,b),this.timeStamp=f.now(),this[f.expando]=!0},f.Event.prototype={preventDefault:function(){this.isDefaultPrevented=D;var 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a=c.body,b=c.createElement("div"),d,e,g,h,i=parseFloat(f.css(a,"marginTop"))||0,j="<div style='position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;'><div></div></div><table style='position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;' cellpadding='0' 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\ No newline at end of file
diff --git a/docs/md/js/navigation.js b/docs/md/js/navigation.js
new file mode 100644
index 0000000..e412681
--- /dev/null
+++ b/docs/md/js/navigation.js
@@ -0,0 +1,142 @@
+/*
+ * Navigation allows movement using the arrow keys through the search results.
+ *
+ * When using this library you will need to set scrollIntoView to the
+ * appropriate function for your layout.  Use scrollInWindow if the container
+ * is not scrollable and scrollInElement if the container is a separate
+ * scrolling region.
+ */
+Navigation = new function() {
+  this.initNavigation = function() {
+    var _this = this;
+
+    $(document).keydown(function(e) {
+      _this.onkeydown(e);
+    }).keyup(function(e) {
+      _this.onkeyup(e);
+    });
+
+    this.navigationActive = true;
+  }
+
+  this.setNavigationActive = function(state) {
+    this.navigationActive = state;
+    this.clearMoveTimeout();
+  }
+
+  this.onkeyup = function(e) {
+    if (!this.navigationActive) return;
+
+    switch(e.keyCode) {
+      case 37: //Event.KEY_LEFT:
+      case 38: //Event.KEY_UP:
+      case 39: //Event.KEY_RIGHT:
+      case 40: //Event.KEY_DOWN:
+        this.clearMoveTimeout();
+        break;
+    }
+  }
+
+  this.onkeydown = function(e) {
+    if (!this.navigationActive) return;
+    switch(e.keyCode) {
+      case 37: //Event.KEY_LEFT:
+        if (this.moveLeft()) e.preventDefault();
+        break;
+      case 38: //Event.KEY_UP:
+        if (e.keyCode == 38 || e.ctrlKey) {
+          if (this.moveUp()) e.preventDefault();
+          this.startMoveTimeout(false);
+        }
+        break;
+      case 39: //Event.KEY_RIGHT:
+        if (this.moveRight()) e.preventDefault();
+        break;
+      case 40: //Event.KEY_DOWN:
+        if (e.keyCode == 40 || e.ctrlKey) {
+          if (this.moveDown()) e.preventDefault();
+          this.startMoveTimeout(true);
+        }
+        break;
+      case 13: //Event.KEY_RETURN:
+        if (this.$current)
+          e.preventDefault();
+          this.select(this.$current);
+        break;
+    }
+    if (e.ctrlKey && e.shiftKey) this.select(this.$current);
+  }
+
+  this.clearMoveTimeout = function() {
+    clearTimeout(this.moveTimeout);
+    this.moveTimeout = null;
+  }
+
+  this.startMoveTimeout = function(isDown) {
+    if (!$.browser.mozilla && !$.browser.opera) return;
+    if (this.moveTimeout) this.clearMoveTimeout();
+    var _this = this;
+
+    var go = function() {
+      if (!_this.moveTimeout) return;
+      _this[isDown ? 'moveDown' : 'moveUp']();
+      _this.moveTimout = setTimeout(go, 100);
+    }
+    this.moveTimeout = setTimeout(go, 200);
+  }
+
+  this.moveRight = function() {
+  }
+
+  this.moveLeft = function() {
+  }
+
+  this.move = function(isDown) {
+  }
+
+  this.moveUp = function() {
+    return this.move(false);
+  }
+
+  this.moveDown = function() {
+    return this.move(true);
+  }
+
+  /*
+   * Scrolls to the given element in the scrollable element view.
+   */
+  this.scrollInElement = function(element, view) {
+    var offset, viewHeight, viewScroll, height;
+    offset = element.offsetTop;
+    height = element.offsetHeight;
+    viewHeight = view.offsetHeight;
+    viewScroll = view.scrollTop;
+
+    if (offset - viewScroll + height > viewHeight) {
+      view.scrollTop = offset - viewHeight + height;
+    }
+    if (offset < viewScroll) {
+      view.scrollTop = offset;
+    }
+  }
+
+  /*
+   * Scrolls to the given element in the window.  The second argument is
+   * ignored
+   */
+  this.scrollInWindow = function(element, ignored) {
+    var offset, viewHeight, viewScroll, height;
+    offset = element.offsetTop;
+    height = element.offsetHeight;
+    viewHeight = window.innerHeight;
+    viewScroll = window.scrollY;
+
+    if (offset - viewScroll + height > viewHeight) {
+      window.scrollTo(window.scrollX, offset - viewHeight + height);
+    }
+    if (offset < viewScroll) {
+      window.scrollTo(window.scrollX, offset);
+    }
+  }
+}
+
diff --git a/docs/md/js/search.js b/docs/md/js/search.js
new file mode 100644
index 0000000..60ac295
--- /dev/null
+++ b/docs/md/js/search.js
@@ -0,0 +1,109 @@
+Search = function(data, input, result) {
+  this.data = data;
+  this.$input = $(input);
+  this.$result = $(result);
+
+  this.$current = null;
+  this.$view = this.$result.parent();
+  this.searcher = new Searcher(data.index);
+  this.init();
+}
+
+Search.prototype = $.extend({}, Navigation, new function() {
+  var suid = 1;
+
+  this.init = function() {
+    var _this = this;
+    var observer = function(e) {
+      switch(e.originalEvent.keyCode) {
+        case 38: // Event.KEY_UP
+        case 40: // Event.KEY_DOWN
+          return;
+      }
+      _this.search(_this.$input[0].value);
+    };
+    this.$input.keyup(observer);
+    this.$input.click(observer); // mac's clear field
+
+    this.searcher.ready(function(results, isLast) {
+      _this.addResults(results, isLast);
+    })
+
+    this.initNavigation();
+    this.setNavigationActive(false);
+  }
+
+  this.search = function(value, selectFirstMatch) {
+    value = jQuery.trim(value).toLowerCase();
+    if (value) {
+      this.setNavigationActive(true);
+    } else {
+      this.setNavigationActive(false);
+    }
+
+    if (value == '') {
+      this.lastQuery = value;
+      this.$result.empty();
+      this.$result.attr('aria-expanded', 'false');
+      this.setNavigationActive(false);
+    } else if (value != this.lastQuery) {
+      this.lastQuery = value;
+      this.$result.attr('aria-busy',     'true');
+      this.$result.attr('aria-expanded', 'true');
+      this.firstRun = true;
+      this.searcher.find(value);
+    }
+  }
+
+  this.addResults = function(results, isLast) {
+    var target = this.$result.get(0);
+    if (this.firstRun && (results.length > 0 || isLast)) {
+      this.$current = null;
+      this.$result.empty();
+    }
+
+    for (var i=0, l = results.length; i < l; i++) {
+      var item = this.renderItem.call(this, results[i]);
+      item.setAttribute('id', 'search-result-' + target.childElementCount);
+      target.appendChild(item);
+    };
+
+    if (this.firstRun && results.length > 0) {
+      this.firstRun = false;
+      this.$current = $(target.firstChild);
+      this.$current.addClass('search-selected');
+    }
+    if (jQuery.browser.msie) this.$element[0].className += '';
+
+    if (isLast) this.$result.attr('aria-busy', 'false');
+  }
+
+  this.move = function(isDown) {
+    if (!this.$current) return;
+    var $next = this.$current[isDown ? 'next' : 'prev']();
+    if ($next.length) {
+      this.$current.removeClass('search-selected');
+      $next.addClass('search-selected');
+      this.$input.attr('aria-activedescendant', $next.attr('id'));
+      this.scrollIntoView($next[0], this.$view[0]);
+      this.$current = $next;
+      this.$input.val($next[0].firstChild.firstChild.text);
+      this.$input.select();
+    }
+    return true;
+  }
+
+  this.hlt = function(html) {
+    return this.escapeHTML(html).
+      replace(/\u0001/g, '<em>').
+      replace(/\u0002/g, '</em>');
+  }
+
+  this.escapeHTML = function(html) {
+    return html.replace(/[&<>]/g, function(c) {
+      return '&#' + c.charCodeAt(0) + ';';
+    });
+  }
+
+});
+
diff --git a/docs/md/js/search_index.js b/docs/md/js/search_index.js
new file mode 100644
index 0000000..28dcfca
--- /dev/null
+++ b/docs/md/js/search_index.js
@@ -0,0 +1 @@
+var search_data = {"index":{"searchIndex":["bishop","bayes","simpletokenizer","stemmingtokenizer","add_stop_word()","add_stop_words()","guess()","load_default_stop_words()","load_stop_words()","load_yaml()","merge_pools()","new()","new_pool()","pool()","pool_names()","remove_pool()","rename_pool()","robinson()","robinson_fisher()","save_yaml()","to_json()","to_yaml()","tokenize()","tokenize()","train()","trained_on?()","untrain()","changelog","readme"],"longSearchIndex":["bishop","bishop::bayes","bishop::simpletokenizer","bishop::stemmingtokenizer","bishop::bayes#add_stop_word()","bishop::bayes#add_stop_words()","bishop::bayes#guess()","bishop::bayes#load_default_stop_words()","bishop::bayes#load_stop_words()","bishop::bayes#load_yaml()","bishop::bayes#merge_pools()","bishop::bayes::new()","bishop::bayes#new_pool()","bishop::bayes#pool()","bishop::bayes#pool_names()","bishop::bayes#remove_pool()","bishop::bayes#rename_pool()","bishop::robinson()","bishop::robinson_fisher()","bishop::bayes#save_yaml()","bishop::bayes#to_json()","bishop::bayes#to_yaml()","bishop::simpletokenizer#tokenize()","bishop::stemmingtokenizer#tokenize()","bishop::bayes#train()","bishop::bayes#trained_on?()","bishop::bayes#untrain()","",""],"info":[["Bishop","","Bishop.html","",""],["Bishop::Bayes","","Bishop/Bayes.html","",""],["Bishop::SimpleTokenizer","","Bishop/SimpleTokenizer.html","","<p>A tokenizer class which splits words removing non word characters except\nhyphens.\n"],["Bishop::StemmingTokenizer","","Bishop/StemmingTokenizer.html","","<p>A tokenizer which, having split words, reduces them to porter stemmed\ntokens\n"],["add_stop_word","Bishop::Bayes","Bishop/Bayes.html#method-i-add_stop_word","( word )","<p>Add the specified stop word\n"],["add_stop_words","Bishop::Bayes","Bishop/Bayes.html#method-i-add_stop_words","( words )","<p>Add an array of stop words\n"],["guess","Bishop::Bayes","Bishop/Bayes.html#method-i-guess","( msg )","<p>Call this method to classify a “message”.  The return value will be a hash,\nwith the pool name …\n"],["load_default_stop_words","Bishop::Bayes","Bishop/Bayes.html#method-i-load_default_stop_words","()","<p>Load the default stop word list included with Bishop\n"],["load_stop_words","Bishop::Bayes","Bishop/Bayes.html#method-i-load_stop_words","( source )","<p>Load stopwords from the specified YAML formatted file\n"],["load_yaml","Bishop::Bayes","Bishop/Bayes.html#method-i-load_yaml","( file = 'bayesdata.yml' )","<p>Load the current state from a YAML file, default = &#39;bayesdata.yml&#39;\n"],["merge_pools","Bishop::Bayes","Bishop/Bayes.html#method-i-merge_pools","( dest_name, source_name )","<p>Merge the contents of the source pool into the destination destination\npool.\n"],["new","Bishop::Bayes","Bishop/Bayes.html#method-c-new","( tokenizer = SimpleTokenizer, &combiner )","<p>tokenizer is the name of the class that will separate the input into\ntokens.  See SimpleTokenizer and …\n"],["new_pool","Bishop::Bayes","Bishop/Bayes.html#method-i-new_pool","( pool_name )","<p>Create a new, empty, pool without training.\n"],["pool","Bishop::Bayes","Bishop/Bayes.html#method-i-pool","(pool_name)","<p>Get the pool specified by name\n"],["pool_names","Bishop::Bayes","Bishop/Bayes.html#method-i-pool_names","()","<p>Get a list of pools\n"],["remove_pool","Bishop::Bayes","Bishop/Bayes.html#method-i-remove_pool","( pool_name )","<p>Remove the given pool\n"],["rename_pool","Bishop::Bayes","Bishop/Bayes.html#method-i-rename_pool","( pool_name, new_name )","<p>Rename the given pool\n"],["robinson","Bishop","Bishop.html#method-c-robinson","( probs, ignore )","<p>default “combiner” set in initialize ignore is truly ignored\n"],["robinson_fisher","Bishop","Bishop.html#method-c-robinson_fisher","( probs, ignore )","<p>Alternative combiner\n"],["save_yaml","Bishop::Bayes","Bishop/Bayes.html#method-i-save_yaml","( file = 'bayesdata.yml' )","<p>Save the current state to a YAML file, default = &#39;bayesdata.yml&#39;\n"],["to_json","Bishop::Bayes","Bishop/Bayes.html#method-i-to_json","()","<p>Gets the current state in JSON format\n"],["to_yaml","Bishop::Bayes","Bishop/Bayes.html#method-i-to_yaml","()","<p>Gets the current state in YAML format\n"],["tokenize","Bishop::SimpleTokenizer","Bishop/SimpleTokenizer.html#method-i-tokenize","( item, stop_words=[] )",""],["tokenize","Bishop::StemmingTokenizer","Bishop/StemmingTokenizer.html#method-i-tokenize","( item, stop_words=[] )",""],["train","Bishop::Bayes","Bishop/Bayes.html#method-i-train","( pool_name, input )","<p>Train the specified pool with the given input.\n<p>If the input is a string it is passed through the configured …\n"],["trained_on?","Bishop::Bayes","Bishop/Bayes.html#method-i-trained_on-3F","( token )","<p>Returns true if the specified token has been trained for any pool\n"],["untrain","Bishop::Bayes","Bishop/Bayes.html#method-i-untrain","( pool_name, input )","<p>Remove the input from the given pool If the input is a string it is passed\nthrough the configured Tokenizer …\n"],["CHANGELOG","","CHANGELOG_md.html","","<p>Revisions\n<p>0.5.0\n<p>Lots of refactoring, cleanup, making methods private, etc.\n"],["README","","README_md.html","","<p>Introduction\n<p>This is a Naive Bayes classifier that can be used to categorize text based\non trained “pools”. …\n"]]}}
\ No newline at end of file
diff --git a/docs/md/js/searcher.js b/docs/md/js/searcher.js
new file mode 100644
index 0000000..f854b54
--- /dev/null
+++ b/docs/md/js/searcher.js
@@ -0,0 +1,228 @@
+Searcher = function(data) {
+  this.data = data;
+  this.handlers = [];
+}
+
+Searcher.prototype = new function() {
+  // search is performed in chunks of 1000 for non-blocking user input
+  var CHUNK_SIZE = 1000;
+  // do not try to find more than 100 results
+  var MAX_RESULTS = 100;
+  var huid = 1;
+  var suid = 1;
+  var runs = 0;
+
+  this.find = function(query) {
+    var queries = splitQuery(query);
+    var regexps = buildRegexps(queries);
+    var highlighters = buildHilighters(queries);
+    var state = { from: 0, pass: 0, limit: MAX_RESULTS, n: suid++};
+    var _this = this;
+
+    this.currentSuid = state.n;
+
+    if (!query) return;
+
+    var run = function() {
+      // stop current search thread if new search started
+      if (state.n != _this.currentSuid) return;
+
+      var results =
+        performSearch(_this.data, regexps, queries, highlighters, state);
+      var hasMore = (state.limit > 0 && state.pass < 4);
+
+      triggerResults.call(_this, results, !hasMore);
+      if (hasMore) {
+        setTimeout(run, 2);
+      }
+      runs++;
+    };
+    runs = 0;
+
+    // start search thread
+    run();
+  }
+
+  /*  ----- Events ------  */
+  this.ready = function(fn) {
+    fn.huid = huid;
+    this.handlers.push(fn);
+  }
+
+  /*  ----- Utilities ------  */
+  function splitQuery(query) {
+    return jQuery.grep(query.split(/(\s+|::?|\(\)?)/), function(string) {
+      return string.match(/\S/)
+    });
+  }
+
+  function buildRegexps(queries) {
+    return jQuery.map(queries, function(query) {
+      return new RegExp(query.replace(/(.)/g, '([$1])([^$1]*?)'), 'i')
+    });
+  }
+
+  function buildHilighters(queries) {
+    return jQuery.map(queries, function(query) {
+      return jQuery.map(query.split(''), function(l, i) {
+        return '\u0001$' + (i*2+1) + '\u0002$' + (i*2+2);
+      }).join('');
+    });
+  }
+
+  // function longMatchRegexp(index, longIndex, regexps) {
+  //     for (var i = regexps.length - 1; i >= 0; i--){
+  //         if (!index.match(regexps[i]) && !longIndex.match(regexps[i])) return false;
+  //     };
+  //     return true;
+  // }
+
+
+  /*  ----- Mathchers ------  */
+
+  /*
+   * This record matches if the index starts with queries[0] and the record
+   * matches all of the regexps
+   */
+  function matchPassBeginning(index, longIndex, queries, regexps) {
+    if (index.indexOf(queries[0]) != 0) return false;
+    for (var i=1, l = regexps.length; i < l; i++) {
+      if (!index.match(regexps[i]) && !longIndex.match(regexps[i]))
+        return false;
+    };
+    return true;
+  }
+
+  /*
+   * This record matches if the longIndex starts with queries[0] and the
+   * longIndex matches all of the regexps
+   */
+  function matchPassLongIndex(index, longIndex, queries, regexps) {
+    if (longIndex.indexOf(queries[0]) != 0) return false;
+    for (var i=1, l = regexps.length; i < l; i++) {
+      if (!longIndex.match(regexps[i]))
+        return false;
+    };
+    return true;
+  }
+
+  /*
+   * This record matches if the index contains queries[0] and the record
+   * matches all of the regexps
+   */
+  function matchPassContains(index, longIndex, queries, regexps) {
+    if (index.indexOf(queries[0]) == -1) return false;
+    for (var i=1, l = regexps.length; i < l; i++) {
+      if (!index.match(regexps[i]) && !longIndex.match(regexps[i]))
+        return false;
+    };
+    return true;
+  }
+
+  /*
+   * This record matches if regexps[0] matches the index and the record
+   * matches all of the regexps
+   */
+  function matchPassRegexp(index, longIndex, queries, regexps) {
+    if (!index.match(regexps[0])) return false;
+    for (var i=1, l = regexps.length; i < l; i++) {
+      if (!index.match(regexps[i]) && !longIndex.match(regexps[i]))
+        return false;
+    };
+    return true;
+  }
+
+
+  /*  ----- Highlighters ------  */
+  function highlightRegexp(info, queries, regexps, highlighters) {
+    var result = createResult(info);
+    for (var i=0, l = regexps.length; i < l; i++) {
+      result.title = result.title.replace(regexps[i], highlighters[i]);
+      result.namespace = result.namespace.replace(regexps[i], highlighters[i]);
+    };
+    return result;
+  }
+
+  function hltSubstring(string, pos, length) {
+    return string.substring(0, pos) + '\u0001' + string.substring(pos, pos + length) + '\u0002' + string.substring(pos + length);
+  }
+
+  function highlightQuery(info, queries, regexps, highlighters) {
+    var result = createResult(info);
+    var pos = 0;
+    var lcTitle = result.title.toLowerCase();
+
+    pos = lcTitle.indexOf(queries[0]);
+    if (pos != -1) {
+      result.title = hltSubstring(result.title, pos, queries[0].length);
+    }
+
+    result.namespace = result.namespace.replace(regexps[0], highlighters[0]);
+    for (var i=1, l = regexps.length; i < l; i++) {
+      result.title = result.title.replace(regexps[i], highlighters[i]);
+      result.namespace = result.namespace.replace(regexps[i], highlighters[i]);
+    };
+    return result;
+  }
+
+  function createResult(info) {
+    var result = {};
+    result.title = info[0];
+    result.namespace = info[1];
+    result.path = info[2];
+    result.params = info[3];
+    result.snippet = info[4];
+    return result;
+  }
+
+  /*  ----- Searching ------  */
+  function performSearch(data, regexps, queries, highlighters, state) {
+    var searchIndex = data.searchIndex;
+    var longSearchIndex = data.longSearchIndex;
+    var info = data.info;
+    var result = [];
+    var i = state.from;
+    var l = searchIndex.length;
+    var togo = CHUNK_SIZE;
+    var matchFunc, hltFunc;
+
+    while (state.pass < 4 && state.limit > 0 && togo > 0) {
+      if (state.pass == 0) {
+        matchFunc = matchPassBeginning;
+        hltFunc = highlightQuery;
+      } else if (state.pass == 1) {
+        matchFunc = matchPassLongIndex;
+        hltFunc = highlightQuery;
+      } else if (state.pass == 2) {
+        matchFunc = matchPassContains;
+        hltFunc = highlightQuery;
+      } else if (state.pass == 3) {
+        matchFunc = matchPassRegexp;
+        hltFunc = highlightRegexp;
+      }
+
+      for (; togo > 0 && i < l && state.limit > 0; i++, togo--) {
+        if (info[i].n == state.n) continue;
+        if (matchFunc(searchIndex[i], longSearchIndex[i], queries, regexps)) {
+          info[i].n = state.n;
+          result.push(hltFunc(info[i], queries, regexps, highlighters));
+          state.limit--;
+        }
+      };
+      if (searchIndex.length <= i) {
+        state.pass++;
+        i = state.from = 0;
+      } else {
+        state.from = i;
+      }
+    }
+    return result;
+  }
+
+  function triggerResults(results, isLast) {
+    jQuery.each(this.handlers, function(i, fn) {
+      fn.call(this, results, isLast)
+    })
+  }
+}
+
diff --git a/docs/md/rdoc.css b/docs/md/rdoc.css
new file mode 100644
index 0000000..4f22ada
--- /dev/null
+++ b/docs/md/rdoc.css
@@ -0,0 +1,580 @@
+/*
+ * "Darkfish" Rdoc CSS
+ * $Id: rdoc.css 54 2009-01-27 01:09:48Z deveiant $
+ *
+ * Author: Michael Granger <ged@FaerieMUD.org>
+ *
+ */
+
+/* vim: ft=css et sw=2 ts=2 sts=2 */
+/* Base Green is: #6C8C22 */
+
+* { padding: 0; margin: 0; }
+
+body {
+  background: #fafafa;
+  font-family: Lato, sans-serif;
+  font-weight: 300;
+}
+
+h1 span,
+h2 span,
+h3 span,
+h4 span,
+h5 span,
+h6 span {
+  display: none;
+  padding-left: 1em;
+  font-size: 10px;
+  vertical-align: super;
+}
+
+h1:hover span,
+h2:hover span,
+h3:hover span,
+h4:hover span,
+h5:hover span,
+h6:hover span {
+  display: inline;
+}
+
+:link,
+:visited {
+  color: #6C8C22;
+  text-decoration: none;
+}
+
+:link:hover,
+:visited:hover {
+  border-bottom: 1px dotted #6C8C22;
+}
+
+code,
+pre {
+  font-family: "Source Code Pro", Monaco, monospace;
+}
+
+/* @group Generic Classes */
+
+.initially-hidden {
+  display: none;
+}
+
+#search-field {
+  width: 98%;
+  background: white;
+  border: none;
+  height: 1.5em;
+  -webkit-border-radius: 4px;
+  -moz-border-radius: 4px;
+  border-radius: 4px;
+  text-align: left;
+}
+#search-field:focus {
+  background: #f1edba;
+}
+#search-field:-moz-placeholder,
+#search-field::-webkit-input-placeholder {
+  font-weight: bold;
+  color: #666;
+}
+
+.missing-docs {
+  font-size: 120%;
+  background: white url(images/wrench_orange.png) no-repeat 4px center;
+  color: #ccc;
+  line-height: 2em;
+  border: 1px solid #d00;
+  opacity: 1;
+  padding-left: 20px;
+  text-indent: 24px;
+  letter-spacing: 3px;
+  font-weight: bold;
+  -webkit-border-radius: 5px;
+  -moz-border-radius: 5px;
+}
+
+.target-section {
+  border: 2px solid #dcce90;
+  border-left-width: 8px;
+  padding: 0 1em;
+  background: #fff3c2;
+}
+
+/* @end */
+
+/* @group Index Page, Standalone file pages */
+.table-of-contents ul {
+  margin: 1em;
+  list-style: none;
+}
+
+.table-of-contents ul ul {
+  margin-top: 0.25em;
+}
+
+.table-of-contents ul :link,
+.table-of-contents ul :visited {
+  font-size: 16px;
+}
+
+.table-of-contents li {
+  margin-bottom: 0.25em;
+}
+
+.table-of-contents li .toc-toggle {
+  width: 16px;
+  height: 16px;
+  background: url(images/add.png) no-repeat;
+}
+
+.table-of-contents li .toc-toggle.open {
+  background: url(images/delete.png) no-repeat;
+}
+
+/* @end */
+
+/* @group Top-Level Structure */
+
+nav {
+  float: left;
+  width: 260px;
+  font-family: Helvetica, sans-serif;
+  font-size: 14px;
+}
+
+main {
+  display: block;
+  margin: 0 2em 5em 260px;
+  padding-left: 20px;
+  min-width: 340px;
+  font-size: 16px;
+}
+
+main h1,
+main h2,
+main h3,
+main h4,
+main h5,
+main h6 {
+  font-family: Helvetica, sans-serif;
+}
+
+.table-of-contents main {
+  margin-left: 2em;
+}
+
+#validator-badges {
+  clear: both;
+  margin: 1em 1em 2em;
+  font-size: smaller;
+}
+
+/* @end */
+
+/* @group navigation */
+nav {
+  margin-bottom: 1em;
+}
+
+nav .nav-section {
+  margin-top: 2em;
+  border-top: 2px solid #aaa;
+  font-size: 90%;
+  overflow: hidden;
+}
+
+nav h2 {
+  margin: 0;
+  padding: 2px 8px 2px 8px;
+  background-color: #e8e8e8;
+  color: #555;
+  font-size: 125%;
+  text-align: center;
+}
+
+nav h3,
+#table-of-contents-navigation {
+  margin: 0;
+  padding: 2px 8px 2px 8px;
+  text-align: right;
+  background-color: #e8e8e8;
+  color: #555;
+}
+
+nav ul,
+nav dl,
+nav p {
+  padding: 4px 8px 0;
+  list-style: none;
+}
+
+#project-navigation .nav-section {
+  margin: 0;
+  border-top: 0;
+}
+
+#home-section h2 {
+  text-align: center;
+}
+
+#table-of-contents-navigation {
+  font-size: 1.2em;
+  font-weight: bold;
+  text-align: center;
+}
+
+#search-section {
+  margin-top: 0;
+  border-top: 0;
+}
+
+#search-field-wrapper {
+  border-top: 1px solid #aaa;
+  border-bottom: 1px solid #aaa;
+  padding: 3px 8px;
+  background-color: #e8e8e8;
+  color: #555;
+}
+
+ul.link-list li {
+  white-space: nowrap;
+  line-height: 1.4em;
+}
+
+ul.link-list .type {
+  font-size: 8px;
+  text-transform: uppercase;
+  color: white;
+  background: #969696;
+  padding: 2px 4px;
+  -webkit-border-radius: 5px;
+}
+
+.calls-super {
+  background: url(images/arrow_up.png) no-repeat right center;
+}
+
+/* @end */
+
+/* @group Documentation Section */
+main {
+  color: #333;
+}
+
+main > h1:first-child,
+main > h2:first-child,
+main > h3:first-child,
+main > h4:first-child,
+main > h5:first-child,
+main > h6:first-child {
+  margin-top: 0px;
+}
+
+main sup {
+  vertical-align: super;
+  font-size: 0.8em;
+}
+
+/* The heading with the class name */
+main h1[class] {
+  margin-top: 0;
+  margin-bottom: 1em;
+  font-size: 2em;
+  color: #6C8C22;
+}
+
+main h1 {
+  margin: 2em 0 0.5em;
+  font-size: 1.7em;
+}
+
+main h2 {
+  margin: 2em 0 0.5em;
+  font-size: 1.5em;
+}
+
+main h3 {
+  margin: 2em 0 0.5em;
+  font-size: 1.2em;
+}
+
+main h4 {
+  margin: 2em 0 0.5em;
+  font-size: 1.1em;
+}
+
+main h5 {
+  margin: 2em 0 0.5em;
+  font-size: 1em;
+}
+
+main h6 {
+  margin: 2em 0 0.5em;
+  font-size: 1em;
+}
+
+main p {
+  margin: 0 0 0.5em;
+  line-height: 1.4em;
+}
+
+main pre {
+  margin: 1.2em 0.5em;
+  padding: 1em;
+  font-size: 0.8em;
+}
+
+main hr {
+  margin: 1.5em 1em;
+  border: 2px solid #ddd;
+}
+
+main blockquote {
+  margin: 0 2em 1.2em 1.2em;
+  padding-left: 0.5em;
+  border-left: 2px solid #ddd;
+}
+
+main ol,
+main ul {
+  margin: 1em 2em;
+}
+
+main li > p {
+  margin-bottom: 0.5em;
+}
+
+main dl {
+  margin: 1em 0.5em;
+}
+
+main dt {
+  margin-bottom: 0.5em;
+  font-weight: bold;
+}
+
+main dd {
+  margin: 0 1em 1em 0.5em;
+}
+
+main header h2 {
+  margin-top: 2em;
+  border-width: 0;
+  border-top: 4px solid #bbb;
+  font-size: 130%;
+}
+
+main header h3 {
+  margin: 2em 0 1.5em;
+  border-width: 0;
+  border-top: 3px solid #bbb;
+  font-size: 120%;
+}
+
+.documentation-section-title {
+  position: relative;
+}
+.documentation-section-title .section-click-top {
+  position: absolute;
+  top: 6px;
+  left: 12px;
+  font-size: 10px;
+  color: #9b9877;
+  visibility: hidden;
+  padding-left: 0.5px;
+}
+
+.documentation-section-title:hover .section-click-top {
+  visibility: visible;
+}
+
+.constants-list > dl {
+  margin: 1em 0 2em;
+  border: 0;
+}
+
+.constants-list > dl dt {
+  margin-bottom: 0.75em;
+  padding-left: 0;
+  font-family: "Source Code Pro", Monaco, monospace;
+  font-size: 110%;
+}
+
+.constants-list > dl dt a {
+  color: inherit;
+}
+
+.constants-list > dl dd {
+  margin: 0 0 2em 0;
+  padding: 0;
+  color: #666;
+}
+
+.documentation-section h2 {
+  position: relative;
+}
+
+.documentation-section h2 a {
+  position: absolute;
+  top: 8px;
+  right: 10px;
+  font-size: 12px;
+  color: #9b9877;
+  visibility: hidden;
+}
+
+.documentation-section h2:hover a {
+  visibility: visible;
+}
+
+/* @group Method Details */
+
+main .method-source-code {
+  display: none;
+}
+
+main .method-description .method-calls-super {
+  color: #333;
+  font-weight: bold;
+}
+
+main .method-detail {
+  margin-bottom: 2.5em;
+  cursor: pointer;
+}
+
+main .method-detail:target {
+  margin-left: -10px;
+  border-left: 10px solid #f1edba;
+}
+
+main .method-heading {
+  position: relative;
+  font-family: "Source Code Pro", Monaco, monospace;
+  font-size: 110%;
+  font-weight: bold;
+  color: #333;
+}
+main .method-heading :link,
+main .method-heading :visited {
+  color: inherit;
+}
+main .method-click-advice {
+  position: absolute;
+  top: 2px;
+  right: 5px;
+  font-size: 12px;
+  color: #9b9877;
+  visibility: hidden;
+  padding-right: 20px;
+  line-height: 20px;
+  background: url(images/zoom.png) no-repeat right top;
+}
+main .method-heading:hover .method-click-advice {
+  visibility: visible;
+}
+
+main .method-alias .method-heading {
+  color: #666;
+}
+
+main .method-description,
+main .aliases {
+  margin-top: 0.75em;
+  color: #333;
+}
+
+main .aliases {
+  padding-top: 4px;
+  font-style: italic;
+  cursor: default;
+}
+main .method-description ul {
+  margin-left: 1.5em;
+}
+
+main #attribute-method-details .method-detail:hover {
+  background-color: transparent;
+  cursor: default;
+}
+main .attribute-access-type {
+  text-transform: uppercase;
+  padding: 0 1em;
+}
+/* @end */
+
+/* @end */
+
+/* @group Source Code */
+
+pre {
+  margin: 0.5em 0;
+  border: 1px dashed #999;
+  padding: 0.5em;
+  background: #262626;
+  color: white;
+  overflow: auto;
+}
+
+.ruby-constant   { color: #7fffd4; background: transparent; }
+.ruby-keyword    { color: #00ffff; background: transparent; }
+.ruby-ivar       { color: #eedd82; background: transparent; }
+.ruby-operator   { color: #00ffee; background: transparent; }
+.ruby-identifier { color: #ffdead; background: transparent; }
+.ruby-node       { color: #ffa07a; background: transparent; }
+.ruby-comment    { color: #dc0000; background: transparent; }
+.ruby-regexp     { color: #ffa07a; background: transparent; }
+.ruby-value      { color: #7fffd4; background: transparent; }
+
+/* @end */
+
+
+/* @group search results */
+#search-results {
+  font-family: Lato, sans-serif;
+  font-weight: 300;
+}
+
+#search-results .search-match {
+  font-family: Helvetica, sans-serif;
+  font-weight: normal;
+}
+
+#search-results .search-selected {
+  background: #e8e8e8;
+  border-bottom: 1px solid transparent;
+}
+
+#search-results li {
+  list-style: none;
+  border-bottom: 1px solid #aaa;
+  margin-bottom: 0.5em;
+}
+
+#search-results li:last-child {
+  border-bottom: none;
+  margin-bottom: 0;
+}
+
+#search-results li p {
+  padding: 0;
+  margin: 0.5em;
+}
+
+#search-results .search-namespace {
+  font-weight: bold;
+}
+
+#search-results li em {
+  background: yellow;
+  font-style: normal;
+}
+
+#search-results pre {
+  margin: 0.5em;
+  font-family: "Source Code Pro", Monaco, monospace;
+}
+
+/* @end */
+
diff --git a/docs/md/table_of_contents.html b/docs/md/table_of_contents.html
new file mode 100644
index 0000000..873a36e
--- /dev/null
+++ b/docs/md/table_of_contents.html
@@ -0,0 +1,192 @@
+<!DOCTYPE html>
+
+<html>
+<head>
+<meta charset="UTF-8">
+
+<title>Table of Contents - Bayes::Bishop Documentation</title>
+
+<link href="./fonts.css" rel="stylesheet">
+<link href="./rdoc.css" rel="stylesheet">
+
+<script type="text/javascript">
+  var rdoc_rel_prefix = "./";
+</script>
+
+<script src="./js/jquery.js"></script>
+<script src="./js/navigation.js"></script>
+<script src="./js/search_index.js"></script>
+<script src="./js/search.js"></script>
+<script src="./js/searcher.js"></script>
+<script src="./js/darkfish.js"></script>
+
+
+<body id="top" class="table-of-contents">
+<main role="main">
+<h1 class="class">Table of Contents - Bayes::Bishop Documentation</h1>
+
+<h2 id="pages">Pages</h2>
+<ul>
+  <li class="file">
+    <a href="CHANGELOG_md.html">CHANGELOG</a>
+
+    <ul>
+      <li><a href="CHANGELOG_md.html#label-Revisions">Revisions</a>
+      <li><a href="CHANGELOG_md.html#label-0.5.0">0.5.0</a>
+    </ul>
+  </li>
+    <li class="file">
+    <a href="README_md.html">README</a>
+
+    <ul>
+      <li><a href="README_md.html#label-Introduction">Introduction</a>
+      <li><a href="README_md.html#label-Usage">Usage</a>
+      <li><a href="README_md.html#label-Features">Features</a>
+    </ul>
+  </li>
+  
+</ul>
+
+<h2 id="classes">Classes and Modules</h2>
+<ul>
+  <li class="module">
+    <a href="Bishop.html">Bishop</a>
+  </li>
+  <li class="class">
+    <a href="Bishop/Bayes.html">Bishop::Bayes</a>
+  </li>
+  <li class="class">
+    <a href="Bishop/SimpleTokenizer.html">Bishop::SimpleTokenizer</a>
+  </li>
+  <li class="class">
+    <a href="Bishop/StemmingTokenizer.html">Bishop::StemmingTokenizer</a>
+  </li>
+</ul>
+
+<h2 id="methods">Methods</h2>
+<ul>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-c-new">::new</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop.html#method-c-robinson">::robinson</a>
+    &mdash;
+    <span class="container">Bishop</span>
+
+  <li class="method">
+    <a href="Bishop.html#method-c-robinson_fisher">::robinson_fisher</a>
+    &mdash;
+    <span class="container">Bishop</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-add_stop_word">#add_stop_word</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-add_stop_words">#add_stop_words</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-guess">#guess</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-load_default_stop_words">#load_default_stop_words</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-load_stop_words">#load_stop_words</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-load_yaml">#load_yaml</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-merge_pools">#merge_pools</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-new_pool">#new_pool</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-pool">#pool</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-pool_names">#pool_names</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-remove_pool">#remove_pool</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-rename_pool">#rename_pool</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-save_yaml">#save_yaml</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-to_json">#to_json</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-to_yaml">#to_yaml</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/StemmingTokenizer.html#method-i-tokenize">#tokenize</a>
+    &mdash;
+    <span class="container">Bishop::StemmingTokenizer</span>
+
+  <li class="method">
+    <a href="Bishop/SimpleTokenizer.html#method-i-tokenize">#tokenize</a>
+    &mdash;
+    <span class="container">Bishop::SimpleTokenizer</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-train">#train</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-trained_on-3F">#trained_on?</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-untrain">#untrain</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+</ul>
+</main>
+
+
+<footer id="validator-badges" role="contentinfo">
+  <p><a href="http://validator.w3.org/check/referer">Validate</a>
+  <p>Generated by <a href="http://rdoc.rubyforge.org">RDoc</a> 4.1.0.
+  <p>Based on <a href="http://deveiate.org/projects/Darkfish-Rdoc/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>.
+</footer>
+
diff --git a/docs/rdoc/Bishop.html b/docs/rdoc/Bishop.html
new file mode 100644
index 0000000..030df55
--- /dev/null
+++ b/docs/rdoc/Bishop.html
@@ -0,0 +1,202 @@
+<!DOCTYPE html>
+
+<html>
+<head>
+<meta charset="UTF-8">
+
+<title>module Bishop - Bayes::Bishop Documentation</title>
+
+<link href="./fonts.css" rel="stylesheet">
+<link href="./rdoc.css" rel="stylesheet">
+
+<script type="text/javascript">
+  var rdoc_rel_prefix = "./";
+</script>
+
+<script src="./js/jquery.js"></script>
+<script src="./js/navigation.js"></script>
+<script src="./js/search_index.js"></script>
+<script src="./js/search.js"></script>
+<script src="./js/searcher.js"></script>
+<script src="./js/darkfish.js"></script>
+
+
+<body id="top" role="document" class="module">
+<nav role="navigation">
+  <div id="project-navigation">
+    <div id="home-section" role="region" title="Quick navigation" class="nav-section">
+  <h2>
+    <a href="./index.html" rel="home">Home</a>
+  </h2>
+
+  <div id="table-of-contents-navigation">
+    <a href="./table_of_contents.html#pages">Pages</a>
+    <a href="./table_of_contents.html#classes">Classes</a>
+    <a href="./table_of_contents.html#methods">Methods</a>
+  </div>
+</div>
+
+    <div id="search-section" role="search" class="project-section initially-hidden">
+  <form action="#" method="get" accept-charset="utf-8">
+    <div id="search-field-wrapper">
+      <input id="search-field" role="combobox" aria-label="Search"
+             aria-autocomplete="list" aria-controls="search-results"
+             type="text" name="search" placeholder="Search" spellcheck="false"
+             title="Type to search, Up and Down to navigate, Enter to load">
+    </div>
+
+    <ul id="search-results" aria-label="Search Results"
+        aria-busy="false" aria-expanded="false"
+        aria-atomic="false" class="initially-hidden"></ul>
+  </form>
+</div>
+
+  </div>
+
+  
+
+  <div id="class-metadata">
+    
+    
+    
+    
+    <!-- Method Quickref -->
+<div id="method-list-section" class="nav-section">
+  <h3>Methods</h3>
+
+  <ul class="link-list" role="directory">
+    
+    <li ><a href="#method-c-robinson">::robinson</a>
+    
+    <li ><a href="#method-c-robinson_fisher">::robinson_fisher</a>
+    
+  </ul>
+</div>
+
+  </div>
+</nav>
+
+<main role="main" aria-labelledby="module-Bishop">
+  <h1 id="module-Bishop" class="module">
+    module Bishop
+  </h1>
+
+  <section class="description">
+    
+  </section>
+
+  
+  
+  
+  <section id="5Buntitled-5D" class="documentation-section">
+    
+
+    
+
+    
+
+    
+
+    
+     <section id="public-class-5Buntitled-5D-method-details" class="method-section">
+       <header>
+         <h3>Public Class Methods</h3>
+       </header>
+
+    
+      <div id="method-c-robinson" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">robinson</span><span
+            class="method-args">( probs, ignore )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>default “combiner” set in initialize ignore is truly ignored</p>
+          
+          
+
+          
+          <div class="method-source-code" id="robinson-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 419</span>
+<span class="ruby-keyword">def</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">robinson</span>( <span class="ruby-identifier">probs</span>, <span class="ruby-identifier">ignore</span> )
+  <span class="ruby-identifier">nth</span> = <span class="ruby-value">1.0</span><span class="ruby-operator">/</span><span class="ruby-identifier">probs</span>.<span class="ruby-identifier">length</span>
+  <span class="ruby-identifier">what_is_p</span> = <span class="ruby-value">1.0</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">probs</span>.<span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">p</span><span class="ruby-operator">|</span> <span class="ruby-value">1.0</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">p</span>[<span class="ruby-value">1</span>] }.<span class="ruby-identifier">inject</span>( <span class="ruby-value">1.0</span> ) { <span class="ruby-operator">|</span><span class="ruby-identifier">s</span>,<span class="ruby-identifier">v</span><span class="ruby-operator">|</span> <span class="ruby-identifier">s</span> <span class="ruby-operator">*</span> <span class="ruby-identifier">v</span> } <span class="ruby-operator">**</span> <span class="ruby-identifier">nth</span>
+  <span class="ruby-identifier">what_is_q</span> = <span class="ruby-value">1.0</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">probs</span>.<span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">p</span><span class="ruby-operator">|</span> <span class="ruby-identifier">p</span>[<span class="ruby-value">1</span>] }.<span class="ruby-identifier">inject</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">s</span>,<span class="ruby-identifier">v</span><span class="ruby-operator">|</span> <span class="ruby-identifier">s</span> <span class="ruby-operator">*</span> <span class="ruby-identifier">v</span> } <span class="ruby-operator">**</span> <span class="ruby-identifier">nth</span>
+  <span class="ruby-identifier">what_is_s</span> = ( <span class="ruby-identifier">what_is_p</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">what_is_q</span> ) <span class="ruby-operator">/</span> ( <span class="ruby-identifier">what_is_p</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">what_is_q</span> )
+  ( <span class="ruby-value">1</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">what_is_s</span> ) <span class="ruby-operator">/</span> <span class="ruby-value">2</span>
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-c-robinson_fisher" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">robinson_fisher</span><span
+            class="method-args">( probs, ignore )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Alternative combiner</p>
+          
+          
+
+          
+          <div class="method-source-code" id="robinson_fisher-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 428</span>
+<span class="ruby-keyword">def</span> <span class="ruby-keyword">self</span>.<span class="ruby-identifier">robinson_fisher</span>( <span class="ruby-identifier">probs</span>, <span class="ruby-identifier">ignore</span> )
+  <span class="ruby-identifier">n</span> = <span class="ruby-identifier">probs</span>.<span class="ruby-identifier">length</span>
+  
+  <span class="ruby-keyword">begin</span>
+    <span class="ruby-identifier">h</span> = <span class="ruby-identifier">chi2p</span>( <span class="ruby-value">-2.0</span> <span class="ruby-operator">*</span> <span class="ruby-constant">Math</span>.<span class="ruby-identifier">log</span>( <span class="ruby-identifier">probs</span>.<span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">p</span><span class="ruby-operator">|</span> <span class="ruby-identifier">p</span>[<span class="ruby-value">1</span>] }.<span class="ruby-identifier">inject</span>( <span class="ruby-value">1.0</span> ) { <span class="ruby-operator">|</span><span class="ruby-identifier">s</span>,<span class="ruby-identifier">v</span><span class="ruby-operator">|</span> <span class="ruby-identifier">s</span><span class="ruby-operator">*</span><span class="ruby-identifier">v</span> } ), <span class="ruby-value">2</span><span class="ruby-operator">*</span><span class="ruby-identifier">n</span> )
+  <span class="ruby-keyword">rescue</span>
+    <span class="ruby-identifier">h</span> = <span class="ruby-value">0.0</span>
+  <span class="ruby-keyword">end</span>
+
+  <span class="ruby-keyword">begin</span>      
+    <span class="ruby-identifier">s</span> = <span class="ruby-identifier">chi2p</span>( <span class="ruby-value">-2.0</span> <span class="ruby-operator">*</span> <span class="ruby-constant">Math</span>.<span class="ruby-identifier">log</span>( <span class="ruby-identifier">probs</span>.<span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">p</span><span class="ruby-operator">|</span> <span class="ruby-value">1.0</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">p</span>[<span class="ruby-value">1</span>] }.<span class="ruby-identifier">inject</span>( <span class="ruby-value">1.0</span> ) { <span class="ruby-operator">|</span><span class="ruby-identifier">s</span>,<span class="ruby-identifier">v</span><span class="ruby-operator">|</span> <span class="ruby-identifier">s</span><span class="ruby-operator">*</span><span class="ruby-identifier">v</span> } ), <span class="ruby-value">2</span><span class="ruby-operator">*</span><span class="ruby-identifier">n</span> )
+  <span class="ruby-keyword">rescue</span>
+    <span class="ruby-identifier">s</span> = <span class="ruby-value">0.0</span>
+  <span class="ruby-keyword">end</span>
+  
+  ( <span class="ruby-value">1</span> <span class="ruby-operator">+</span> <span class="ruby-identifier">h</span> <span class="ruby-operator">-</span> <span class="ruby-identifier">s</span> ) <span class="ruby-operator">/</span> <span class="ruby-value">2</span>
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+    </section>
+  
+  </section>
+</main>
+
+
+<footer id="validator-badges" role="contentinfo">
+  <p><a href="http://validator.w3.org/check/referer">Validate</a>
+  <p>Generated by <a href="http://rdoc.rubyforge.org">RDoc</a> 4.1.0.
+  <p>Based on <a href="http://deveiate.org/projects/Darkfish-Rdoc/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>.
+</footer>
+
diff --git a/docs/rdoc/Bishop/Bayes.html b/docs/rdoc/Bishop/Bayes.html
new file mode 100644
index 0000000..3ac61bd
--- /dev/null
+++ b/docs/rdoc/Bishop/Bayes.html
@@ -0,0 +1,894 @@
+<!DOCTYPE html>
+
+<html>
+<head>
+<meta charset="UTF-8">
+
+<title>class Bishop::Bayes - Bayes::Bishop Documentation</title>
+
+<link href="../fonts.css" rel="stylesheet">
+<link href="../rdoc.css" rel="stylesheet">
+
+<script type="text/javascript">
+  var rdoc_rel_prefix = "../";
+</script>
+
+<script src="../js/jquery.js"></script>
+<script src="../js/navigation.js"></script>
+<script src="../js/search_index.js"></script>
+<script src="../js/search.js"></script>
+<script src="../js/searcher.js"></script>
+<script src="../js/darkfish.js"></script>
+
+
+<body id="top" role="document" class="class">
+<nav role="navigation">
+  <div id="project-navigation">
+    <div id="home-section" role="region" title="Quick navigation" class="nav-section">
+  <h2>
+    <a href="../index.html" rel="home">Home</a>
+  </h2>
+
+  <div id="table-of-contents-navigation">
+    <a href="../table_of_contents.html#pages">Pages</a>
+    <a href="../table_of_contents.html#classes">Classes</a>
+    <a href="../table_of_contents.html#methods">Methods</a>
+  </div>
+</div>
+
+    <div id="search-section" role="search" class="project-section initially-hidden">
+  <form action="#" method="get" accept-charset="utf-8">
+    <div id="search-field-wrapper">
+      <input id="search-field" role="combobox" aria-label="Search"
+             aria-autocomplete="list" aria-controls="search-results"
+             type="text" name="search" placeholder="Search" spellcheck="false"
+             title="Type to search, Up and Down to navigate, Enter to load">
+    </div>
+
+    <ul id="search-results" aria-label="Search Results"
+        aria-busy="false" aria-expanded="false"
+        aria-atomic="false" class="initially-hidden"></ul>
+  </form>
+</div>
+
+  </div>
+
+  
+
+  <div id="class-metadata">
+    
+    <div id="parent-class-section" class="nav-section">
+  <h3>Parent</h3>
+
+  
+  <p class="link">Object
+  
+</div>
+
+    
+    
+    <!-- Method Quickref -->
+<div id="method-list-section" class="nav-section">
+  <h3>Methods</h3>
+
+  <ul class="link-list" role="directory">
+    
+    <li ><a href="#method-c-new">::new</a>
+    
+    <li ><a href="#method-i-add_stop_word">#add_stop_word</a>
+    
+    <li ><a href="#method-i-add_stop_words">#add_stop_words</a>
+    
+    <li ><a href="#method-i-guess">#guess</a>
+    
+    <li ><a href="#method-i-load_default_stop_words">#load_default_stop_words</a>
+    
+    <li ><a href="#method-i-load_stop_words">#load_stop_words</a>
+    
+    <li ><a href="#method-i-load_yaml">#load_yaml</a>
+    
+    <li ><a href="#method-i-merge_pools">#merge_pools</a>
+    
+    <li ><a href="#method-i-new_pool">#new_pool</a>
+    
+    <li ><a href="#method-i-pool">#pool</a>
+    
+    <li ><a href="#method-i-pool_names">#pool_names</a>
+    
+    <li ><a href="#method-i-remove_pool">#remove_pool</a>
+    
+    <li ><a href="#method-i-rename_pool">#rename_pool</a>
+    
+    <li ><a href="#method-i-save_yaml">#save_yaml</a>
+    
+    <li ><a href="#method-i-to_json">#to_json</a>
+    
+    <li ><a href="#method-i-to_yaml">#to_yaml</a>
+    
+    <li ><a href="#method-i-train">#train</a>
+    
+    <li ><a href="#method-i-trained_on-3F">#trained_on?</a>
+    
+    <li ><a href="#method-i-untrain">#untrain</a>
+    
+  </ul>
+</div>
+
+  </div>
+</nav>
+
+<main role="main" aria-labelledby="class-Bishop::Bayes">
+  <h1 id="class-Bishop::Bayes" class="class">
+    class Bishop::Bayes
+  </h1>
+
+  <section class="description">
+    
+  </section>
+
+  
+  
+  
+  <section id="5Buntitled-5D" class="documentation-section">
+    
+
+    
+
+    
+
+    
+    <section class="attribute-method-details" class="method-section">
+      <header>
+        <h3>Attributes</h3>
+      </header>
+
+      
+      <div id="attribute-i-combiner" class="method-detail">
+        <div class="method-heading attribute-method-heading">
+          <span class="method-name">combiner</span><span
+            class="attribute-access-type">[RW]</span>
+        </div>
+
+        <div class="method-description">
+        
+        <p>Block called to combine probabilities.  Set to <a
+href="../Bishop.html#method-c-robinson">Bishop.robinson</a> by default</p>
+        
+        </div>
+      </div>
+      
+      <div id="attribute-i-stop_words" class="method-detail">
+        <div class="method-heading attribute-method-heading">
+          <span class="method-name">stop_words</span><span
+            class="attribute-access-type">[R]</span>
+        </div>
+
+        <div class="method-description">
+        
+        <p>An array containing stop words that the tokenizer will ignore</p>
+        
+        </div>
+      </div>
+      
+      <div id="attribute-i-tokenizer" class="method-detail">
+        <div class="method-heading attribute-method-heading">
+          <span class="method-name">tokenizer</span><span
+            class="attribute-access-type">[RW]</span>
+        </div>
+
+        <div class="method-description">
+        
+        <p>instance of Tokenizer that handles tokenization</p>
+        
+        </div>
+      </div>
+      
+    </section>
+    
+
+    
+     <section id="public-class-5Buntitled-5D-method-details" class="method-section">
+       <header>
+         <h3>Public Class Methods</h3>
+       </header>
+
+    
+      <div id="method-c-new" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">new</span><span
+            class="method-args">( tokenizer = SimpleTokenizer, &combiner )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>tokenizer is the name of the class that will separate the input into
+tokens.  See <a href="SimpleTokenizer.html">SimpleTokenizer</a> and <a
+href="StemmingTokenizer.html">StemmingTokenizer</a> for more information.
+Combiner defaults to a block that calls <a
+href="../Bishop.html#method-c-robinson">Bishop.robinson</a></p>
+          
+          
+
+          
+          <div class="method-source-code" id="new-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 139</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">initialize</span>( <span class="ruby-identifier">tokenizer</span> = <span class="ruby-constant">SimpleTokenizer</span>, <span class="ruby-operator">&amp;</span><span class="ruby-identifier">combiner</span> )
+  <span class="ruby-ivar">@tokenizer</span> = <span class="ruby-identifier">tokenizer</span>.<span class="ruby-identifier">new</span>
+  <span class="ruby-ivar">@combiner</span> = <span class="ruby-identifier">combiner</span> <span class="ruby-operator">||</span> <span class="ruby-constant">Proc</span>.<span class="ruby-identifier">new</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">probs</span>,<span class="ruby-identifier">ignore</span><span class="ruby-operator">|</span> <span class="ruby-constant">Bishop</span>.<span class="ruby-identifier">robinson</span>( <span class="ruby-identifier">probs</span>, <span class="ruby-identifier">ignore</span> ) }
+  <span class="ruby-ivar">@pools</span> = {} <span class="ruby-comment"># hash, key = pool name, value = BayesPool class
</span>
+  <span class="ruby-ivar">@cache</span> = {} <span class="ruby-comment"># created by calling build_cache, contains raw probabilities
</span>
+  <span class="ruby-ivar">@corpus_data</span> = <span class="ruby-keyword">nil</span> <span class="ruby-comment"># created when corpus method is called, contains token totals
</span>
+  <span class="ruby-ivar">@dirty</span> = <span class="ruby-keyword">true</span> <span class="ruby-comment"># indicates that cache and corpus_data are invalid
</span>
+  <span class="ruby-ivar">@stop_words</span> = []
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+    </section>
+  
+     <section id="public-instance-5Buntitled-5D-method-details" class="method-section">
+       <header>
+         <h3>Public Instance Methods</h3>
+       </header>
+
+    
+      <div id="method-i-add_stop_word" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">add_stop_word</span><span
+            class="method-args">( word )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Add the specified stop word</p>
+          
+          
+
+          
+          <div class="method-source-code" id="add_stop_word-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 199</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">add_stop_word</span>( <span class="ruby-identifier">word</span> )
+  <span class="ruby-ivar">@stop_words</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">word</span>.<span class="ruby-identifier">downcase</span> <span class="ruby-keyword">if</span> <span class="ruby-operator">!</span><span class="ruby-ivar">@stop_words</span>.<span class="ruby-identifier">include?</span>(<span class="ruby-identifier">word</span>.<span class="ruby-identifier">downcase</span>)
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-add_stop_words" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">add_stop_words</span><span
+            class="method-args">( words )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Add an array of stop words</p>
+          
+          
+
+          
+          <div class="method-source-code" id="add_stop_words-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 194</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">add_stop_words</span>( <span class="ruby-identifier">words</span> )
+  <span class="ruby-identifier">words</span>.<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">word</span><span class="ruby-operator">|</span> <span class="ruby-identifier">add_stop_word</span> <span class="ruby-identifier">word</span> <span class="ruby-keyword">if</span> <span class="ruby-operator">!</span><span class="ruby-identifier">word</span>.<span class="ruby-identifier">empty?</span> }
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-guess" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">guess</span><span
+            class="method-args">( msg )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Call this method to classify a “message”.  The return value will be a hash,
+with the pool name is the key and the probability is the value, for each
+pool which is a likely match for the message.</p>
+          
+          
+
+          
+          <div class="method-source-code" id="guess-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 302</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">guess</span>( <span class="ruby-identifier">msg</span> )
+  <span class="ruby-identifier">tokens</span> = <span class="ruby-identifier">get_tokens</span>( <span class="ruby-identifier">msg</span> )
+  <span class="ruby-identifier">res</span> = {}
+  
+  <span class="ruby-identifier">build_cache</span> <span class="ruby-keyword">if</span> <span class="ruby-identifier">dirty?</span>
+  
+  <span class="ruby-ivar">@cache</span>.<span class="ruby-identifier">each</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">pool_name</span>,<span class="ruby-identifier">pool</span><span class="ruby-operator">|</span>
+    <span class="ruby-identifier">p</span> = <span class="ruby-identifier">get_probs</span>( <span class="ruby-identifier">pool</span>, <span class="ruby-identifier">tokens</span> )
+    <span class="ruby-keyword">if</span> <span class="ruby-identifier">p</span>.<span class="ruby-identifier">length</span> <span class="ruby-operator">!=</span> <span class="ruby-value">0</span>
+      <span class="ruby-identifier">res</span>[<span class="ruby-identifier">pool_name</span>] = <span class="ruby-ivar">@combiner</span>.<span class="ruby-identifier">call</span>( <span class="ruby-identifier">p</span>, <span class="ruby-identifier">pool_name</span> )
+    <span class="ruby-keyword">end</span>    
+  <span class="ruby-keyword">end</span>
+  
+  <span class="ruby-identifier">h</span> = <span class="ruby-constant">Hash</span>.<span class="ruby-identifier">new</span>
+  <span class="ruby-identifier">res</span>.<span class="ruby-identifier">sort</span>.<span class="ruby-identifier">each</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">a</span><span class="ruby-operator">|</span> <span class="ruby-identifier">h</span>[<span class="ruby-identifier">a</span>[<span class="ruby-value">0</span>]] = <span class="ruby-identifier">a</span>[<span class="ruby-value">1</span>] }
+  <span class="ruby-identifier">h</span>
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-load_default_stop_words" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">load_default_stop_words</span><span
+            class="method-args">()</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Load the default stop word list included with <a
+href="../Bishop.html">Bishop</a></p>
+          
+          
+
+          
+          <div class="method-source-code" id="load_default_stop_words-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 209</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">load_default_stop_words</span>
+  <span class="ruby-identifier">load_stop_words</span>( <span class="ruby-constant">File</span>.<span class="ruby-identifier">join</span>( <span class="ruby-constant">File</span>.<span class="ruby-identifier">dirname</span>( <span class="ruby-keyword">__FILE__</span> ), <span class="ruby-string">&#39;stopwords.yml&#39;</span> ) )
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-load_stop_words" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">load_stop_words</span><span
+            class="method-args">( source )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Load stopwords from the specified YAML formatted file</p>
+          
+          
+
+          
+          <div class="method-source-code" id="load_stop_words-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 204</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">load_stop_words</span>( <span class="ruby-identifier">source</span> )
+  <span class="ruby-constant">File</span>.<span class="ruby-identifier">open</span>( <span class="ruby-identifier">source</span> ) { <span class="ruby-operator">|</span><span class="ruby-identifier">f</span><span class="ruby-operator">|</span> <span class="ruby-identifier">add_stop_words</span>( <span class="ruby-constant">YAML</span>.<span class="ruby-identifier">load</span>( <span class="ruby-identifier">f</span> ) ) }
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-load_yaml" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">load_yaml</span><span
+            class="method-args">( file = 'bayesdata.yml' )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Load the current state from a YAML file, default = &#39;bayesdata.yml&#39;</p>
+          
+          
+
+          
+          <div class="method-source-code" id="load_yaml-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 258</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">load_yaml</span>( <span class="ruby-identifier">file</span> = <span class="ruby-string">&#39;bayesdata.yml&#39;</span> )
+  <span class="ruby-keyword">begin</span>
+    <span class="ruby-constant">File</span>.<span class="ruby-identifier">open</span>( <span class="ruby-identifier">file</span> ) { <span class="ruby-operator">|</span><span class="ruby-identifier">f</span><span class="ruby-operator">|</span> <span class="ruby-identifier">load_data</span>( <span class="ruby-identifier">f</span> ) }
+  <span class="ruby-keyword">rescue</span> <span class="ruby-constant">Errno</span><span class="ruby-operator">::</span><span class="ruby-constant">ENOENT</span>
+    <span class="ruby-comment"># File does not exist
</span>
+  <span class="ruby-keyword">end</span>
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-merge_pools" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">merge_pools</span><span
+            class="method-args">( dest_name, source_name )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Merge the contents of the source pool into the destination destination
+pool.</p>
+          
+          
+
+          
+          <div class="method-source-code" id="merge_pools-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 184</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">merge_pools</span>( <span class="ruby-identifier">dest_name</span>, <span class="ruby-identifier">source_name</span> )
+  <span class="ruby-ivar">@pools</span>[<span class="ruby-identifier">dest_name</span>].<span class="ruby-identifier">merge</span>(<span class="ruby-ivar">@pools</span>[<span class="ruby-identifier">source_name</span>])
+  <span class="ruby-ivar">@dirty</span> = <span class="ruby-keyword">true</span>  
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-new_pool" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">new_pool</span><span
+            class="method-args">( pool_name )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Create a new, empty, pool without training.</p>
+          
+          
+
+          
+          <div class="method-source-code" id="new_pool-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 165</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">new_pool</span>( <span class="ruby-identifier">pool_name</span> )
+  <span class="ruby-ivar">@dirty</span> = <span class="ruby-keyword">true</span>
+  <span class="ruby-ivar">@pools</span>[ <span class="ruby-identifier">pool_name</span> ] <span class="ruby-operator">||=</span> <span class="ruby-constant">BayesPool</span>.<span class="ruby-identifier">new</span>
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-pool" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">pool</span><span
+            class="method-args">(pool_name)</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Get the pool specified by name</p>
+          
+          
+
+          
+          <div class="method-source-code" id="pool-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 155</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">pool</span> <span class="ruby-identifier">pool_name</span>
+  <span class="ruby-ivar">@pools</span>[<span class="ruby-identifier">pool_name</span>]
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-pool_names" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">pool_names</span><span
+            class="method-args">()</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Get a list of pools</p>
+          
+          
+
+          
+          <div class="method-source-code" id="pool_names-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 160</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">pool_names</span>
+  <span class="ruby-ivar">@pools</span>.<span class="ruby-identifier">keys</span>.<span class="ruby-identifier">sort</span>
+      <span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-remove_pool" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">remove_pool</span><span
+            class="method-args">( pool_name )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Remove the given pool</p>
+          
+          
+
+          
+          <div class="method-source-code" id="remove_pool-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 171</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">remove_pool</span>( <span class="ruby-identifier">pool_name</span> )
+  <span class="ruby-ivar">@dirty</span> = <span class="ruby-keyword">true</span>
+  <span class="ruby-ivar">@pools</span>.<span class="ruby-identifier">delete</span>( <span class="ruby-identifier">pool_name</span> ) 
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-rename_pool" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">rename_pool</span><span
+            class="method-args">( pool_name, new_name )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Rename the given pool</p>
+          
+          
+
+          
+          <div class="method-source-code" id="rename_pool-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 177</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">rename_pool</span>( <span class="ruby-identifier">pool_name</span>, <span class="ruby-identifier">new_name</span> )
+  <span class="ruby-ivar">@pools</span>[<span class="ruby-identifier">new_name</span>] = <span class="ruby-ivar">@pools</span>[<span class="ruby-identifier">pool_name</span>]
+  <span class="ruby-ivar">@pools</span>.<span class="ruby-identifier">delete</span>( <span class="ruby-identifier">pool_name</span> )
+  <span class="ruby-ivar">@dirty</span> = <span class="ruby-keyword">true</span>
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-save_yaml" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">save_yaml</span><span
+            class="method-args">( file = 'bayesdata.yml' )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Save the current state to a YAML file, default = &#39;bayesdata.yml&#39;</p>
+          
+          
+
+          
+          <div class="method-source-code" id="save_yaml-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 253</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">save_yaml</span>( <span class="ruby-identifier">file</span> = <span class="ruby-string">&#39;bayesdata.yml&#39;</span> )
+  <span class="ruby-constant">File</span>.<span class="ruby-identifier">open</span>( <span class="ruby-identifier">file</span>, <span class="ruby-string">&#39;w&#39;</span> ) { <span class="ruby-operator">|</span><span class="ruby-identifier">f</span><span class="ruby-operator">|</span> <span class="ruby-identifier">f</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">to_yaml</span> }
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-to_json" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">to_json</span><span
+            class="method-args">()</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Gets the current state in JSON format</p>
+          
+          
+
+          
+          <div class="method-source-code" id="to_json-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 248</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">to_json</span>
+  <span class="ruby-constant">JSON</span>.<span class="ruby-identifier">pretty_generate</span>(<span class="ruby-identifier">export</span>)
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-to_yaml" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">to_yaml</span><span
+            class="method-args">()</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Gets the current state in YAML format</p>
+          
+          
+
+          
+          <div class="method-source-code" id="to_yaml-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 243</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">to_yaml</span>
+  <span class="ruby-identifier">export</span>.<span class="ruby-identifier">to_yaml</span>
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-train" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">train</span><span
+            class="method-args">( pool_name, input )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Train the specified pool with the given input.</p>
+
+<p>If the input is a string it is passed through the configured Tokenizer.
+Otherwise, if it is an array it is just added.</p>
+          
+          
+
+          
+          <div class="method-source-code" id="train-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 273</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">train</span>( <span class="ruby-identifier">pool_name</span>, <span class="ruby-identifier">input</span> )
+  <span class="ruby-identifier">tokens</span> = <span class="ruby-identifier">input</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">String</span>) <span class="ruby-operator">?</span> <span class="ruby-identifier">get_tokens</span>( <span class="ruby-identifier">input</span> ) <span class="ruby-operator">:</span> <span class="ruby-identifier">input</span>
+  <span class="ruby-identifier">pool</span> = <span class="ruby-identifier">new_pool</span>( <span class="ruby-identifier">pool_name</span> )
+  <span class="ruby-identifier">train_</span>( <span class="ruby-identifier">pool</span>, <span class="ruby-identifier">tokens</span> )
+  <span class="ruby-identifier">pool</span>.<span class="ruby-identifier">train_count</span> <span class="ruby-operator">+=</span> <span class="ruby-value">1</span>
+  <span class="ruby-ivar">@dirty</span> = <span class="ruby-keyword">true</span>
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-trained_on-3F" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">trained_on?</span><span
+            class="method-args">( token )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Returns true if the specified token has been trained for any pool</p>
+          
+          
+
+          
+          <div class="method-source-code" id="trained_on-3F-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 294</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">trained_on?</span>( <span class="ruby-identifier">token</span> )
+  <span class="ruby-identifier">build_cache</span> <span class="ruby-keyword">if</span> <span class="ruby-ivar">@dirty</span>
+  <span class="ruby-ivar">@cache</span>.<span class="ruby-identifier">values</span>.<span class="ruby-identifier">any?</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">v</span><span class="ruby-operator">|</span> <span class="ruby-identifier">v</span>.<span class="ruby-identifier">trained_on?</span> <span class="ruby-identifier">token</span> }
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+      <div id="method-i-untrain" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">untrain</span><span
+            class="method-args">( pool_name, input )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          <p>Remove the input from the given pool If the input is a string it is passed
+through the configured Tokenizer. Otherwise, if it is an array it is just
+added.</p>
+          
+          
+
+          
+          <div class="method-source-code" id="untrain-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 284</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">untrain</span>( <span class="ruby-identifier">pool_name</span>, <span class="ruby-identifier">input</span> )
+  <span class="ruby-identifier">pool</span> = <span class="ruby-identifier">find_pool</span>( <span class="ruby-identifier">pool_name</span> )
+  <span class="ruby-keyword">return</span> <span class="ruby-keyword">if</span> <span class="ruby-operator">!</span><span class="ruby-identifier">pool</span>
+  <span class="ruby-identifier">tokens</span> = <span class="ruby-identifier">input</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">String</span>) <span class="ruby-operator">?</span> <span class="ruby-identifier">get_tokens</span>( <span class="ruby-identifier">input</span> ) <span class="ruby-operator">:</span> <span class="ruby-identifier">input</span>
+  <span class="ruby-identifier">untrain_</span>( <span class="ruby-identifier">pool</span>, <span class="ruby-identifier">tokens</span> )
+  <span class="ruby-identifier">pool</span>.<span class="ruby-identifier">train_count</span> <span class="ruby-operator">-=</span> <span class="ruby-value">1</span>
+  <span class="ruby-ivar">@dirty</span> = <span class="ruby-keyword">true</span>  
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+    </section>
+  
+  </section>
+</main>
+
+
+<footer id="validator-badges" role="contentinfo">
+  <p><a href="http://validator.w3.org/check/referer">Validate</a>
+  <p>Generated by <a href="http://rdoc.rubyforge.org">RDoc</a> 4.1.0.
+  <p>Based on <a href="http://deveiate.org/projects/Darkfish-Rdoc/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>.
+</footer>
+
diff --git a/docs/rdoc/Bishop/SimpleTokenizer.html b/docs/rdoc/Bishop/SimpleTokenizer.html
new file mode 100644
index 0000000..d0563f4
--- /dev/null
+++ b/docs/rdoc/Bishop/SimpleTokenizer.html
@@ -0,0 +1,161 @@
+<!DOCTYPE html>
+
+<html>
+<head>
+<meta charset="UTF-8">
+
+<title>class Bishop::SimpleTokenizer - Bayes::Bishop Documentation</title>
+
+<link href="../fonts.css" rel="stylesheet">
+<link href="../rdoc.css" rel="stylesheet">
+
+<script type="text/javascript">
+  var rdoc_rel_prefix = "../";
+</script>
+
+<script src="../js/jquery.js"></script>
+<script src="../js/navigation.js"></script>
+<script src="../js/search_index.js"></script>
+<script src="../js/search.js"></script>
+<script src="../js/searcher.js"></script>
+<script src="../js/darkfish.js"></script>
+
+
+<body id="top" role="document" class="class">
+<nav role="navigation">
+  <div id="project-navigation">
+    <div id="home-section" role="region" title="Quick navigation" class="nav-section">
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+    <a href="../index.html" rel="home">Home</a>
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+  </div>
+</div>
+
+    <div id="search-section" role="search" class="project-section initially-hidden">
+  <form action="#" method="get" accept-charset="utf-8">
+    <div id="search-field-wrapper">
+      <input id="search-field" role="combobox" aria-label="Search"
+             aria-autocomplete="list" aria-controls="search-results"
+             type="text" name="search" placeholder="Search" spellcheck="false"
+             title="Type to search, Up and Down to navigate, Enter to load">
+    </div>
+
+    <ul id="search-results" aria-label="Search Results"
+        aria-busy="false" aria-expanded="false"
+        aria-atomic="false" class="initially-hidden"></ul>
+  </form>
+</div>
+
+  </div>
+
+  
+
+  <div id="class-metadata">
+    
+    <div id="parent-class-section" class="nav-section">
+  <h3>Parent</h3>
+
+  
+  <p class="link">Object
+  
+</div>
+
+    
+    
+    <!-- Method Quickref -->
+<div id="method-list-section" class="nav-section">
+  <h3>Methods</h3>
+
+  <ul class="link-list" role="directory">
+    
+    <li ><a href="#method-i-tokenize">#tokenize</a>
+    
+  </ul>
+</div>
+
+  </div>
+</nav>
+
+<main role="main" aria-labelledby="class-Bishop::SimpleTokenizer">
+  <h1 id="class-Bishop::SimpleTokenizer" class="class">
+    class Bishop::SimpleTokenizer
+  </h1>
+
+  <section class="description">
+    
+<p>A tokenizer class which splits words removing non word characters except
+hyphens.</p>
+
+  </section>
+
+  
+  
+  
+  <section id="5Buntitled-5D" class="documentation-section">
+    
+
+    
+
+    
+
+    
+
+    
+     <section id="public-instance-5Buntitled-5D-method-details" class="method-section">
+       <header>
+         <h3>Public Instance Methods</h3>
+       </header>
+
+    
+      <div id="method-i-tokenize" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">tokenize</span><span
+            class="method-args">( item, stop_words=[] )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          
+          
+          
+
+          
+          <div class="method-source-code" id="tokenize-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 107</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">tokenize</span>( <span class="ruby-identifier">item</span>, <span class="ruby-identifier">stop_words</span>=[] )
+  <span class="ruby-identifier">item</span>.<span class="ruby-identifier">split</span>( <span class="ruby-regexp">/\s+/</span> ).<span class="ruby-identifier">map</span> <span class="ruby-keyword">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">i</span><span class="ruby-operator">|</span>
+    <span class="ruby-identifier">i</span>.<span class="ruby-identifier">split</span>( <span class="ruby-regexp">/\-/</span> ).<span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">token</span><span class="ruby-operator">|</span> <span class="ruby-identifier">token</span>.<span class="ruby-identifier">downcase</span>.<span class="ruby-identifier">gsub</span>( <span class="ruby-regexp">/\W/</span>, <span class="ruby-string">&quot;&quot;</span> ) }.<span class="ruby-identifier">join</span>( <span class="ruby-string">&quot;-&quot;</span> )
+  <span class="ruby-keyword">end</span>.<span class="ruby-identifier">reject</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">t</span><span class="ruby-operator">|</span> <span class="ruby-identifier">t</span> <span class="ruby-operator">==</span> <span class="ruby-string">&quot;&quot;</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">t</span> <span class="ruby-operator">==</span> <span class="ruby-string">&quot;-&quot;</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">stop_words</span>.<span class="ruby-identifier">detect</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">w</span><span class="ruby-operator">|</span> <span class="ruby-identifier">w</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">t</span> } }
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+    </section>
+  
+  </section>
+</main>
+
+
+<footer id="validator-badges" role="contentinfo">
+  <p><a href="http://validator.w3.org/check/referer">Validate</a>
+  <p>Generated by <a href="http://rdoc.rubyforge.org">RDoc</a> 4.1.0.
+  <p>Based on <a href="http://deveiate.org/projects/Darkfish-Rdoc/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>.
+</footer>
+
diff --git a/docs/rdoc/Bishop/StemmingTokenizer.html b/docs/rdoc/Bishop/StemmingTokenizer.html
new file mode 100644
index 0000000..a86b6a5
--- /dev/null
+++ b/docs/rdoc/Bishop/StemmingTokenizer.html
@@ -0,0 +1,164 @@
+<!DOCTYPE html>
+
+<html>
+<head>
+<meta charset="UTF-8">
+
+<title>class Bishop::StemmingTokenizer - Bayes::Bishop Documentation</title>
+
+<link href="../fonts.css" rel="stylesheet">
+<link href="../rdoc.css" rel="stylesheet">
+
+<script type="text/javascript">
+  var rdoc_rel_prefix = "../";
+</script>
+
+<script src="../js/jquery.js"></script>
+<script src="../js/navigation.js"></script>
+<script src="../js/search_index.js"></script>
+<script src="../js/search.js"></script>
+<script src="../js/searcher.js"></script>
+<script src="../js/darkfish.js"></script>
+
+
+<body id="top" role="document" class="class">
+<nav role="navigation">
+  <div id="project-navigation">
+    <div id="home-section" role="region" title="Quick navigation" class="nav-section">
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+    <a href="../index.html" rel="home">Home</a>
+  </h2>
+
+  <div id="table-of-contents-navigation">
+    <a href="../table_of_contents.html#pages">Pages</a>
+    <a href="../table_of_contents.html#classes">Classes</a>
+    <a href="../table_of_contents.html#methods">Methods</a>
+  </div>
+</div>
+
+    <div id="search-section" role="search" class="project-section initially-hidden">
+  <form action="#" method="get" accept-charset="utf-8">
+    <div id="search-field-wrapper">
+      <input id="search-field" role="combobox" aria-label="Search"
+             aria-autocomplete="list" aria-controls="search-results"
+             type="text" name="search" placeholder="Search" spellcheck="false"
+             title="Type to search, Up and Down to navigate, Enter to load">
+    </div>
+
+    <ul id="search-results" aria-label="Search Results"
+        aria-busy="false" aria-expanded="false"
+        aria-atomic="false" class="initially-hidden"></ul>
+  </form>
+</div>
+
+  </div>
+
+  
+
+  <div id="class-metadata">
+    
+    <div id="parent-class-section" class="nav-section">
+  <h3>Parent</h3>
+
+  
+  <p class="link"><a href="SimpleTokenizer.html">Bishop::SimpleTokenizer</a>
+  
+</div>
+
+    
+    
+    <!-- Method Quickref -->
+<div id="method-list-section" class="nav-section">
+  <h3>Methods</h3>
+
+  <ul class="link-list" role="directory">
+    
+    <li class="calls-super" ><a href="#method-i-tokenize">#tokenize</a>
+    
+  </ul>
+</div>
+
+  </div>
+</nav>
+
+<main role="main" aria-labelledby="class-Bishop::StemmingTokenizer">
+  <h1 id="class-Bishop::StemmingTokenizer" class="class">
+    class Bishop::StemmingTokenizer
+  </h1>
+
+  <section class="description">
+    
+<p>A tokenizer which, having split words, reduces them to porter stemmed
+tokens</p>
+
+  </section>
+
+  
+  
+  
+  <section id="5Buntitled-5D" class="documentation-section">
+    
+
+    
+
+    
+
+    
+
+    
+     <section id="public-instance-5Buntitled-5D-method-details" class="method-section">
+       <header>
+         <h3>Public Instance Methods</h3>
+       </header>
+
+    
+      <div id="method-i-tokenize" class="method-detail ">
+        
+        <div class="method-heading">
+          <span class="method-name">tokenize</span><span
+            class="method-args">( item, stop_words=[] )</span>
+          
+          <span class="method-click-advice">click to toggle source</span>
+          
+        </div>
+        
+
+        <div class="method-description">
+          
+          
+          
+          
+            <div class="method-calls-super">
+              Calls superclass method
+              <a href="SimpleTokenizer.html#method-i-tokenize">Bishop::SimpleTokenizer#tokenize</a>
+            </div>
+          
+
+          
+          <div class="method-source-code" id="tokenize-source">
+            <pre><span class="ruby-comment"># File lib/bayes/bishop.rb, line 116</span>
+<span class="ruby-keyword">def</span> <span class="ruby-identifier">tokenize</span>( <span class="ruby-identifier">item</span>, <span class="ruby-identifier">stop_words</span>=[] )
+  <span class="ruby-keyword">super</span>( <span class="ruby-identifier">item</span>, <span class="ruby-identifier">stop_words</span> ).<span class="ruby-identifier">map</span> { <span class="ruby-operator">|</span><span class="ruby-identifier">word</span><span class="ruby-operator">|</span> <span class="ruby-identifier">word</span>.<span class="ruby-identifier">stem</span> }
+<span class="ruby-keyword">end</span></pre>
+          </div>
+          
+        </div>
+
+        
+
+        
+      </div>
+
+    
+    </section>
+  
+  </section>
+</main>
+
+
+<footer id="validator-badges" role="contentinfo">
+  <p><a href="http://validator.w3.org/check/referer">Validate</a>
+  <p>Generated by <a href="http://rdoc.rubyforge.org">RDoc</a> 4.1.0.
+  <p>Based on <a href="http://deveiate.org/projects/Darkfish-Rdoc/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>.
+</footer>
+
diff --git a/docs/rdoc/CHANGELOG_md.html b/docs/rdoc/CHANGELOG_md.html
new file mode 100644
index 0000000..8822b29
--- /dev/null
+++ b/docs/rdoc/CHANGELOG_md.html
@@ -0,0 +1,119 @@
+<!DOCTYPE html>
+
+<html>
+<head>
+<meta charset="UTF-8">
+
+<title>CHANGELOG - Bayes::Bishop Documentation</title>
+
+<link href="./fonts.css" rel="stylesheet">
+<link href="./rdoc.css" rel="stylesheet">
+
+<script type="text/javascript">
+  var rdoc_rel_prefix = "./";
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+
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+<script src="./js/search_index.js"></script>
+<script src="./js/search.js"></script>
+<script src="./js/searcher.js"></script>
+<script src="./js/darkfish.js"></script>
+
+
+<body id="top" role="document" class="file">
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+    <div id="home-section" role="region" title="Quick navigation" class="nav-section">
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+    <a href="./index.html" rel="home">Home</a>
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+
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+    <a href="./table_of_contents.html#pages">Pages</a>
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+  <form action="#" method="get" accept-charset="utf-8">
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+             aria-autocomplete="list" aria-controls="search-results"
+             type="text" name="search" placeholder="Search" spellcheck="false"
+             title="Type to search, Up and Down to navigate, Enter to load">
+    </div>
+
+    <ul id="search-results" aria-label="Search Results"
+        aria-busy="false" aria-expanded="false"
+        aria-atomic="false" class="initially-hidden"></ul>
+  </form>
+</div>
+
+  </div>
+
+  
+<div class="nav-section">
+  <h3>Table of Contents</h3>
+
+  <ul class="link-list" role="directory">
+    <li><a href="#label-Revisions">Revisions</a>
+    <li><a href="#label-0.5.0">0.5.0</a>
+  </ul>
+</div>
+
+
+  <div id="project-metadata">
+    <div id="fileindex-section" class="nav-section">
+  <h3>Pages</h3>
+
+  <ul class="link-list">
+  
+    <li><a href="./CHANGELOG_md.html">CHANGELOG</a>
+  
+    <li><a href="./README_md.html">README</a>
+  
+  </ul>
+</div>
+
+  </div>
+</nav>
+
+<main role="main" aria-label="Page CHANGELOG.md">
+
+<h1 id="label-Revisions">Revisions<span><a href="#label-Revisions">&para;</a> <a href="#documentation">&uarr;</a></span></h1>
+
+<h2 id="label-0.5.0">0.5.0<span><a href="#label-0.5.0">&para;</a> <a href="#documentation">&uarr;</a></span></h2>
+<ul><li>
+<p>Lots of refactoring, cleanup, making methods private, etc.</p>
+</li><li>
+<p>Added tests</p>
+</li><li>
+<p>Removed uid from train/untrain - couldn&#39;t think of a good use case, and
+the logic didn&#39;t seem right since the system doesn&#39;t keep track of
+which call to train created a token the untrain option would blindly remove
+them.</p>
+</li><li>
+<p>Changed BayesData to BayesPool since that seems more explanatory</p>
+</li><li>
+<p>Moved some pool manipulation functions into BayesPool for better
+encapsulation</p>
+</li><li>
+<p>Add to_json method</p>
+</li><li>
+<p>Removed data_class from Bayes initializer since I couldn&#39;t think of a
+reason to make that configurable</p>
+</li><li>
+<p>Create corpus in build cache instead of maintaining it in parallel</p>
+</li></ul>
+</main>
+
+
+
+<footer id="validator-badges" role="contentinfo">
+  <p><a href="http://validator.w3.org/check/referer">Validate</a>
+  <p>Generated by <a href="http://rdoc.rubyforge.org">RDoc</a> 4.1.0.
+  <p>Based on <a href="http://deveiate.org/projects/Darkfish-Rdoc/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>.
+</footer>
+
diff --git a/docs/rdoc/README_md.html b/docs/rdoc/README_md.html
new file mode 100644
index 0000000..4e05df2
--- /dev/null
+++ b/docs/rdoc/README_md.html
@@ -0,0 +1,143 @@
+<!DOCTYPE html>
+
+<html>
+<head>
+<meta charset="UTF-8">
+
+<title>README - Bayes::Bishop Documentation</title>
+
+<link href="./fonts.css" rel="stylesheet">
+<link href="./rdoc.css" rel="stylesheet">
+
+<script type="text/javascript">
+  var rdoc_rel_prefix = "./";
+</script>
+
+<script src="./js/jquery.js"></script>
+<script src="./js/navigation.js"></script>
+<script src="./js/search_index.js"></script>
+<script src="./js/search.js"></script>
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+<script src="./js/darkfish.js"></script>
+
+
+<body id="top" role="document" class="file">
+<nav role="navigation">
+  <div id="project-navigation">
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+
+  <div id="table-of-contents-navigation">
+    <a href="./table_of_contents.html#pages">Pages</a>
+    <a href="./table_of_contents.html#classes">Classes</a>
+    <a href="./table_of_contents.html#methods">Methods</a>
+  </div>
+</div>
+
+    <div id="search-section" role="search" class="project-section initially-hidden">
+  <form action="#" method="get" accept-charset="utf-8">
+    <div id="search-field-wrapper">
+      <input id="search-field" role="combobox" aria-label="Search"
+             aria-autocomplete="list" aria-controls="search-results"
+             type="text" name="search" placeholder="Search" spellcheck="false"
+             title="Type to search, Up and Down to navigate, Enter to load">
+    </div>
+
+    <ul id="search-results" aria-label="Search Results"
+        aria-busy="false" aria-expanded="false"
+        aria-atomic="false" class="initially-hidden"></ul>
+  </form>
+</div>
+
+  </div>
+
+  
+<div class="nav-section">
+  <h3>Table of Contents</h3>
+
+  <ul class="link-list" role="directory">
+    <li><a href="#label-Introduction">Introduction</a>
+    <li><a href="#label-Usage">Usage</a>
+    <li><a href="#label-Features">Features</a>
+  </ul>
+</div>
+
+
+  <div id="project-metadata">
+    <div id="fileindex-section" class="nav-section">
+  <h3>Pages</h3>
+
+  <ul class="link-list">
+  
+    <li><a href="./CHANGELOG_md.html">CHANGELOG</a>
+  
+    <li><a href="./README_md.html">README</a>
+  
+  </ul>
+</div>
+
+  </div>
+</nav>
+
+<main role="main" aria-label="Page README.md">
+
+<h1 id="label-Introduction">Introduction<span><a href="#label-Introduction">&para;</a> <a href="#documentation">&uarr;</a></span></h1>
+
+<p>This is a Naive Bayes classifier that can be used to categorize text based
+on trained “pools”. Training counts how often each word is used, except for
+any specified stop words. The Bayes::Bishop.guess method tokenizes the
+message and then calculates for each pool the probability that the message
+is the same “classification” as that pool. For example, you could train the
+system with one pool of “spam” email and one pool of “non-spam” email. Then
+you could ask the guess method which pool each incoming message belongs to.</p>
+
+<h1 id="label-Usage">Usage<span><a href="#label-Usage">&para;</a> <a href="#documentation">&uarr;</a></span></h1>
+<ol><li>
+<p>Create a <a href="Bishop/Bayes.html">Bishop::Bayes</a> object:</p>
+
+<pre>b = Bishop::Bayes.new</pre>
+</li><li>
+<p>Train with multiple pools of text:</p>
+
+<pre>b.train(&#39;pool1&#39;)  
+b.train(&#39;pool2&#39;)  
+b.train(&#39;pool3&#39;)</pre>
+</li><li>
+<p>Call the guess method with a message to categorize:</p>
+
+<pre>guesses = b.guess(&#39;This is a sentence&#39;)</pre>
+</li></ol>
+
+<p>The return value is a hash where the keys are pool names and the values are
+the probability  that the message belongs to that pool.</p>
+
+<h1 id="label-Features">Features<span><a href="#label-Features">&para;</a> <a href="#documentation">&uarr;</a></span></h1>
+<ul><li>
+<p>Stop words may be specified</p>
+
+<pre>b.add_stop_words(an_array_words)  
+b.add_stop_word(&#39;word&#39;)</pre>
+</li><li>
+<p>You can include the default stop words list</p>
+
+<pre>b.load_default_stop_words</pre>
+</li><li>
+<p>You can choose between the default tokenizer, a stemming tokenizer, or a
+custom tokenizer</p>
+
+<pre>b = Bishop::Bayes.new
+b = Bishop::Bayes.new(Bishop::StemmingTokenizer)
+b = Bishop::Bayes.new(CustomTokenizer)</pre>
+</li></ul>
+</main>
+
+
+
+<footer id="validator-badges" role="contentinfo">
+  <p><a href="http://validator.w3.org/check/referer">Validate</a>
+  <p>Generated by <a href="http://rdoc.rubyforge.org">RDoc</a> 4.1.0.
+  <p>Based on <a href="http://deveiate.org/projects/Darkfish-Rdoc/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>.
+</footer>
+
diff --git a/docs/rdoc/created.rid b/docs/rdoc/created.rid
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--- /dev/null
+++ b/docs/rdoc/created.rid
@@ -0,0 +1,4 @@
+Sun, 02 Nov 2014 22:30:34 -0800
+README.md	Sun, 02 Nov 2014 22:18:55 -0800
+CHANGELOG.md	Sun, 02 Nov 2014 21:13:42 -0800
+lib/bayes/bishop.rb	Sun, 02 Nov 2014 22:30:31 -0800
diff --git a/docs/rdoc/fonts.css b/docs/rdoc/fonts.css
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+/*
+ * Copyright 2010, 2012 Adobe Systems Incorporated (http://www.adobe.com/),
+ * with Reserved Font Name "Source". All Rights Reserved. Source is a
+ * trademark of Adobe Systems Incorporated in the United States and/or other
+ * countries.
+ *
+ * This Font Software is licensed under the SIL Open Font License, Version
+ * 1.1.
+ *
+ * This license is copied below, and is also available with a FAQ at:
+ * http://scripts.sil.org/OFL
+ */
+
+@font-face {
+  font-family: "Source Code Pro";
+  font-style: normal;
+  font-weight: 400;
+  src: local("Source Code Pro"),
+       local("SourceCodePro-Regular"),
+       url("fonts/SourceCodePro-Regular.ttf") format("truetype");
+}
+
+@font-face {
+  font-family: "Source Code Pro";
+  font-style: normal;
+  font-weight: 700;
+  src: local("Source Code Pro Bold"),
+       local("SourceCodePro-Bold"),
+       url("fonts/SourceCodePro-Bold.ttf") format("truetype");
+}
+
+/*
+ * Copyright (c) 2010, Łukasz Dziedzic (dziedzic@typoland.com),
+ * with Reserved Font Name Lato.
+ *
+ * This Font Software is licensed under the SIL Open Font License, Version
+ * 1.1.
+ *
+ * This license is copied below, and is also available with a FAQ at:
+ * http://scripts.sil.org/OFL
+ */
+
+@font-face {
+  font-family: "Lato";
+  font-style: normal;
+  font-weight: 300;
+  src: local("Lato Light"),
+       local("Lato-Light"),
+       url("fonts/Lato-Light.ttf") format("truetype");
+}
+
+@font-face {
+  font-family: "Lato";
+  font-style: italic;
+  font-weight: 300;
+  src: local("Lato Light Italic"),
+       local("Lato-LightItalic"),
+       url("fonts/Lato-LightItalic.ttf") format("truetype");
+}
+
+@font-face {
+  font-family: "Lato";
+  font-style: normal;
+  font-weight: 700;
+  src: local("Lato Regular"),
+       local("Lato-Regular"),
+       url("fonts/Lato-Regular.ttf") format("truetype");
+}
+
+@font-face {
+  font-family: "Lato";
+  font-style: italic;
+  font-weight: 700;
+  src: local("Lato Italic"),
+       local("Lato-Italic"),
+       url("fonts/Lato-RegularItalic.ttf") format("truetype");
+}
+
+/*
+ * -----------------------------------------------------------
+ * SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+ * -----------------------------------------------------------
+ *
+ * PREAMBLE
+ * The goals of the Open Font License (OFL) are to stimulate worldwide
+ * development of collaborative font projects, to support the font creation
+ * efforts of academic and linguistic communities, and to provide a free and
+ * open framework in which fonts may be shared and improved in partnership
+ * with others.
+ *
+ * The OFL allows the licensed fonts to be used, studied, modified and
+ * redistributed freely as long as they are not sold by themselves. The
+ * fonts, including any derivative works, can be bundled, embedded,
+ * redistributed and/or sold with any software provided that any reserved
+ * names are not used by derivative works. The fonts and derivatives,
+ * however, cannot be released under any other type of license. The
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+ * to any document created using the fonts or their derivatives.
+ *
+ * DEFINITIONS
+ * "Font Software" refers to the set of files released by the Copyright
+ * Holder(s) under this license and clearly marked as such. This may
+ * include source files, build scripts and documentation.
+ *
+ * "Reserved Font Name" refers to any names specified as such after the
+ * copyright statement(s).
+ *
+ * "Original Version" refers to the collection of Font Software components as
+ * distributed by the Copyright Holder(s).
+ *
+ * "Modified Version" refers to any derivative made by adding to, deleting,
+ * or substituting -- in part or in whole -- any of the components of the
+ * Original Version, by changing formats or by porting the Font Software to a
+ * new environment.
+ *
+ * "Author" refers to any designer, engineer, programmer, technical
+ * writer or other person who contributed to the Font Software.
+ *
+ * PERMISSION & CONDITIONS
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of the Font Software, to use, study, copy, merge, embed, modify,
+ * redistribute, and sell modified and unmodified copies of the Font
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+ *
+ * 1) Neither the Font Software nor any of its individual components,
+ * in Original or Modified Versions, may be sold by itself.
+ *
+ * 2) Original or Modified Versions of the Font Software may be bundled,
+ * redistributed and/or sold with any software, provided that each copy
+ * contains the above copyright notice and this license. These can be
+ * included either as stand-alone text files, human-readable headers or
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+ * binary files as long as those fields can be easily viewed by the user.
+ *
+ * 3) No Modified Version of the Font Software may use the Reserved Font
+ * Name(s) unless explicit written permission is granted by the corresponding
+ * Copyright Holder. This restriction only applies to the primary font name as
+ * presented to the users.
+ *
+ * 4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+ * Software shall not be used to promote, endorse or advertise any
+ * Modified Version, except to acknowledge the contribution(s) of the
+ * Copyright Holder(s) and the Author(s) or with their explicit written
+ * permission.
+ *
+ * 5) The Font Software, modified or unmodified, in part or in whole,
+ * must be distributed entirely under this license, and must not be
+ * distributed under any other license. The requirement for fonts to
+ * remain under this license does not apply to any document created
+ * using the Font Software.
+ *
+ * TERMINATION
+ * This license becomes null and void if any of the above conditions are
+ * not met.
+ *
+ * DISCLAIMER
+ * THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+ * OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+ * DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+ * OTHER DEALINGS IN THE FONT SOFTWARE.
+ */
+
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@@ -0,0 +1,149 @@
+<!DOCTYPE html>
+
+<html>
+<head>
+<meta charset="UTF-8">
+
+<title>Bayes::Bishop Documentation</title>
+
+<link href="./fonts.css" rel="stylesheet">
+<link href="./rdoc.css" rel="stylesheet">
+
+<script type="text/javascript">
+  var rdoc_rel_prefix = "./";
+</script>
+
+<script src="./js/jquery.js"></script>
+<script src="./js/navigation.js"></script>
+<script src="./js/search_index.js"></script>
+<script src="./js/search.js"></script>
+<script src="./js/searcher.js"></script>
+<script src="./js/darkfish.js"></script>
+
+
+<body id="top" role="document" class="file">
+<nav role="navigation">
+  <div id="project-navigation">
+    <div id="home-section" role="region" title="Quick navigation" class="nav-section">
+  <h2>
+    <a href="./index.html" rel="home">Home</a>
+  </h2>
+
+  <div id="table-of-contents-navigation">
+    <a href="./table_of_contents.html#pages">Pages</a>
+    <a href="./table_of_contents.html#classes">Classes</a>
+    <a href="./table_of_contents.html#methods">Methods</a>
+  </div>
+</div>
+
+
+    <div id="search-section" role="search" class="project-section initially-hidden">
+  <form action="#" method="get" accept-charset="utf-8">
+    <div id="search-field-wrapper">
+      <input id="search-field" role="combobox" aria-label="Search"
+             aria-autocomplete="list" aria-controls="search-results"
+             type="text" name="search" placeholder="Search" spellcheck="false"
+             title="Type to search, Up and Down to navigate, Enter to load">
+    </div>
+
+    <ul id="search-results" aria-label="Search Results"
+        aria-busy="false" aria-expanded="false"
+        aria-atomic="false" class="initially-hidden"></ul>
+  </form>
+</div>
+
+  </div>
+
+  <div id="project-metadata">
+    <div id="fileindex-section" class="nav-section">
+  <h3>Pages</h3>
+
+  <ul class="link-list">
+  
+    <li><a href="./CHANGELOG_md.html">CHANGELOG</a>
+  
+    <li><a href="./README_md.html">README</a>
+  
+  </ul>
+</div>
+
+    <div id="classindex-section" class="nav-section">
+  <h3>Class and Module Index</h3>
+
+  <ul class="link-list">
+  
+    <li><a href="./Bishop.html">Bishop</a>
+  
+    <li><a href="./Bishop/Bayes.html">Bishop::Bayes</a>
+  
+    <li><a href="./Bishop/SimpleTokenizer.html">Bishop::SimpleTokenizer</a>
+  
+    <li><a href="./Bishop/StemmingTokenizer.html">Bishop::StemmingTokenizer</a>
+  
+  </ul>
+</div>
+
+  </div>
+</nav>
+
+<main role="main">
+
+
+<h1 id="label-Introduction">Introduction<span><a href="#label-Introduction">&para;</a> <a href="#documentation">&uarr;</a></span></h1>
+
+<p>This is a Naive Bayes classifier that can be used to categorize text based
+on trained “pools”. Training counts how often each word is used, except for
+any specified stop words. The Bayes::Bishop.guess method tokenizes the
+message and then calculates for each pool the probability that the message
+is the same “classification” as that pool. For example, you could train the
+system with one pool of “spam” email and one pool of “non-spam” email. Then
+you could ask the guess method which pool each incoming message belongs to.</p>
+
+<h1 id="label-Usage">Usage<span><a href="#label-Usage">&para;</a> <a href="#documentation">&uarr;</a></span></h1>
+<ol><li>
+<p>Create a <a href="Bishop/Bayes.html">Bishop::Bayes</a> object:</p>
+
+<pre>b = Bishop::Bayes.new</pre>
+</li><li>
+<p>Train with multiple pools of text:</p>
+
+<pre>b.train(&#39;pool1&#39;)  
+b.train(&#39;pool2&#39;)  
+b.train(&#39;pool3&#39;)</pre>
+</li><li>
+<p>Call the guess method with a message to categorize:</p>
+
+<pre>guesses = b.guess(&#39;This is a sentence&#39;)</pre>
+</li></ol>
+
+<p>The return value is a hash where the keys are pool names and the values are
+the probability  that the message belongs to that pool.</p>
+
+<h1 id="label-Features">Features<span><a href="#label-Features">&para;</a> <a href="#documentation">&uarr;</a></span></h1>
+<ul><li>
+<p>Stop words may be specified</p>
+
+<pre>b.add_stop_words(an_array_words)  
+b.add_stop_word(&#39;word&#39;)</pre>
+</li><li>
+<p>You can include the default stop words list</p>
+
+<pre>b.load_default_stop_words</pre>
+</li><li>
+<p>You can choose between the default tokenizer, a stemming tokenizer, or a
+custom tokenizer</p>
+
+<pre>b = Bishop::Bayes.new
+b = Bishop::Bayes.new(Bishop::StemmingTokenizer)
+b = Bishop::Bayes.new(CustomTokenizer)</pre>
+</li></ul>
+</main>
+
+
+
+<footer id="validator-badges" role="contentinfo">
+  <p><a href="http://validator.w3.org/check/referer">Validate</a>
+  <p>Generated by <a href="http://rdoc.rubyforge.org">RDoc</a> 4.1.0.
+  <p>Based on <a href="http://deveiate.org/projects/Darkfish-Rdoc/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>.
+</footer>
+
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index 0000000..06fef3b
--- /dev/null
+++ b/docs/rdoc/js/darkfish.js
@@ -0,0 +1,140 @@
+/**
+ *
+ * Darkfish Page Functions
+ * $Id: darkfish.js 53 2009-01-07 02:52:03Z deveiant $
+ *
+ * Author: Michael Granger <mgranger@laika.com>
+ *
+ */
+
+/* Provide console simulation for firebug-less environments */
+if (!("console" in window) || !("firebug" in console)) {
+  var names = ["log", "debug", "info", "warn", "error", "assert", "dir", "dirxml",
+    "group", "groupEnd", "time", "timeEnd", "count", "trace", "profile", "profileEnd"];
+
+  window.console = {};
+  for (var i = 0; i < names.length; ++i)
+    window.console[names[i]] = function() {};
+};
+
+
+/**
+ * Unwrap the first element that matches the given @expr@ from the targets and return them.
+ */
+$.fn.unwrap = function( expr ) {
+  return this.each( function() {
+    $(this).parents( expr ).eq( 0 ).after( this ).remove();
+  });
+};
+
+
+function showSource( e ) {
+  var target = e.target;
+  var codeSections = $(target).
+    parents('.method-detail').
+    find('.method-source-code');
+
+  $(target).
+    parents('.method-detail').
+    find('.method-source-code').
+    slideToggle();
+};
+
+function hookSourceViews() {
+  $('.method-heading').click( showSource );
+};
+
+function toggleDebuggingSection() {
+  $('.debugging-section').slideToggle();
+};
+
+function hookDebuggingToggle() {
+  $('#debugging-toggle img').click( toggleDebuggingSection );
+};
+
+function hookSearch() {
+  var input  = $('#search-field').eq(0);
+  var result = $('#search-results').eq(0);
+  $(result).show();
+
+  var search_section = $('#search-section').get(0);
+  $(search_section).show();
+
+  var search = new Search(search_data, input, result);
+
+  search.renderItem = function(result) {
+    var li = document.createElement('li');
+    var html = '';
+
+    // TODO add relative path to <script> per-page
+    html += '<p class="search-match"><a href="' + rdoc_rel_prefix + result.path + '">' + this.hlt(result.title);
+    if (result.params)
+      html += '<span class="params">' + result.params + '</span>';
+    html += '</a>';
+
+
+    if (result.namespace)
+      html += '<p class="search-namespace">' + this.hlt(result.namespace);
+
+    if (result.snippet)
+      html += '<div class="search-snippet">' + result.snippet + '</div>';
+
+    li.innerHTML = html;
+
+    return li;
+  }
+
+  search.select = function(result) {
+    var result_element = result.get(0);
+    window.location.href = result_element.firstChild.firstChild.href;
+  }
+
+  search.scrollIntoView = search.scrollInWindow;
+};
+
+function highlightTarget( anchor ) {
+  console.debug( "Highlighting target '%s'.", anchor );
+
+  $("a[name]").each( function() {
+    if ( $(this).attr("name") == anchor ) {
+      if ( !$(this).parent().parent().hasClass('target-section') ) {
+        console.debug( "Wrapping the target-section" );
+        $('div.method-detail').unwrap( 'div.target-section' );
+        $(this).parent().wrap( '<div class="target-section"></div>' );
+      } else {
+        console.debug( "Already wrapped." );
+      }
+    }
+  });
+};
+
+function highlightLocationTarget() {
+  console.debug( "Location hash: %s", window.location.hash );
+  if ( ! window.location.hash || window.location.hash.length == 0 ) return;
+
+  var anchor = window.location.hash.substring(1);
+  console.debug( "Found anchor: %s; matching %s", anchor, "a[name=" + anchor + "]" );
+
+  highlightTarget( anchor );
+};
+
+function highlightClickTarget( event ) {
+  console.debug( "Highlighting click target for event %o", event.target );
+  try {
+    var anchor = $(event.target).attr( 'href' ).substring(1);
+    console.debug( "Found target anchor: %s", anchor );
+    highlightTarget( anchor );
+  } catch ( err ) {
+    console.error( "Exception while highlighting: %o", err );
+  };
+};
+
+
+$(document).ready( function() {
+  hookSourceViews();
+  hookDebuggingToggle();
+  hookSearch();
+  highlightLocationTarget();
+
+  $('ul.link-list a').bind( "click", highlightClickTarget );
+});
diff --git a/docs/rdoc/js/jquery.js b/docs/rdoc/js/jquery.js
new file mode 100644
index 0000000..628ed9b
--- /dev/null
+++ b/docs/rdoc/js/jquery.js
@@ -0,0 +1,4 @@
+/*! jQuery v1.6.4 http://jquery.com/ | http://jquery.org/license */
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a=c.body,b=c.createElement("div"),d,e,g,h,i=parseFloat(f.css(a,"marginTop"))||0,j="<div style='position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;'><div></div></div><table style='position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;' cellpadding='0' 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d=f.css(a,"position");d==="static"&&(a.style.position="relative");var e=f(a),g=e.offset(),h=f.css(a,"top"),i=f.css(a,"left"),j=(d==="absolute"||d==="fixed")&&f.inArray("auto",[h,i])>-1,k={},l={},m,n;j?(l=e.position(),m=l.top,n=l.left):(m=parseFloat(h)||0,n=parseFloat(i)||0),f.isFunction(b)&&(b=b.call(a,c,g)),b.top!=null&&(k.top=b.top-g.top+m),b.left!=null&&(k.left=b.left-g.left+n),"using"in b?b.using.call(a,k):e.css(k)}},f.fn.extend({position:function(){if(!this[0])return null;var a=this[0],b=this.offsetParent(),c=this.offset(),d=ct.test(b[0].nodeName)?{top:0,left:0}:b.offset();c.top-=parseFloat(f.css(a,"marginTop"))||0,c.left-=parseFloat(f.css(a,"marginLeft"))||0,d.top+=parseFloat(f.css(b[0],"borderTopWidth"))||0,d.left+=parseFloat(f.css(b[0],"borderLeftWidth"))||0;return{top:c.top-d.top,left:c.left-d.left}},offsetParent:function(){return this.map(function(){var a=this.offsetParent||c.body;while(a&&!ct.test(a.nodeName)&&f.css(a,"position")==="static")a=a.offsetParent;return 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\ No newline at end of file
diff --git a/docs/rdoc/js/navigation.js b/docs/rdoc/js/navigation.js
new file mode 100644
index 0000000..e412681
--- /dev/null
+++ b/docs/rdoc/js/navigation.js
@@ -0,0 +1,142 @@
+/*
+ * Navigation allows movement using the arrow keys through the search results.
+ *
+ * When using this library you will need to set scrollIntoView to the
+ * appropriate function for your layout.  Use scrollInWindow if the container
+ * is not scrollable and scrollInElement if the container is a separate
+ * scrolling region.
+ */
+Navigation = new function() {
+  this.initNavigation = function() {
+    var _this = this;
+
+    $(document).keydown(function(e) {
+      _this.onkeydown(e);
+    }).keyup(function(e) {
+      _this.onkeyup(e);
+    });
+
+    this.navigationActive = true;
+  }
+
+  this.setNavigationActive = function(state) {
+    this.navigationActive = state;
+    this.clearMoveTimeout();
+  }
+
+  this.onkeyup = function(e) {
+    if (!this.navigationActive) return;
+
+    switch(e.keyCode) {
+      case 37: //Event.KEY_LEFT:
+      case 38: //Event.KEY_UP:
+      case 39: //Event.KEY_RIGHT:
+      case 40: //Event.KEY_DOWN:
+        this.clearMoveTimeout();
+        break;
+    }
+  }
+
+  this.onkeydown = function(e) {
+    if (!this.navigationActive) return;
+    switch(e.keyCode) {
+      case 37: //Event.KEY_LEFT:
+        if (this.moveLeft()) e.preventDefault();
+        break;
+      case 38: //Event.KEY_UP:
+        if (e.keyCode == 38 || e.ctrlKey) {
+          if (this.moveUp()) e.preventDefault();
+          this.startMoveTimeout(false);
+        }
+        break;
+      case 39: //Event.KEY_RIGHT:
+        if (this.moveRight()) e.preventDefault();
+        break;
+      case 40: //Event.KEY_DOWN:
+        if (e.keyCode == 40 || e.ctrlKey) {
+          if (this.moveDown()) e.preventDefault();
+          this.startMoveTimeout(true);
+        }
+        break;
+      case 13: //Event.KEY_RETURN:
+        if (this.$current)
+          e.preventDefault();
+          this.select(this.$current);
+        break;
+    }
+    if (e.ctrlKey && e.shiftKey) this.select(this.$current);
+  }
+
+  this.clearMoveTimeout = function() {
+    clearTimeout(this.moveTimeout);
+    this.moveTimeout = null;
+  }
+
+  this.startMoveTimeout = function(isDown) {
+    if (!$.browser.mozilla && !$.browser.opera) return;
+    if (this.moveTimeout) this.clearMoveTimeout();
+    var _this = this;
+
+    var go = function() {
+      if (!_this.moveTimeout) return;
+      _this[isDown ? 'moveDown' : 'moveUp']();
+      _this.moveTimout = setTimeout(go, 100);
+    }
+    this.moveTimeout = setTimeout(go, 200);
+  }
+
+  this.moveRight = function() {
+  }
+
+  this.moveLeft = function() {
+  }
+
+  this.move = function(isDown) {
+  }
+
+  this.moveUp = function() {
+    return this.move(false);
+  }
+
+  this.moveDown = function() {
+    return this.move(true);
+  }
+
+  /*
+   * Scrolls to the given element in the scrollable element view.
+   */
+  this.scrollInElement = function(element, view) {
+    var offset, viewHeight, viewScroll, height;
+    offset = element.offsetTop;
+    height = element.offsetHeight;
+    viewHeight = view.offsetHeight;
+    viewScroll = view.scrollTop;
+
+    if (offset - viewScroll + height > viewHeight) {
+      view.scrollTop = offset - viewHeight + height;
+    }
+    if (offset < viewScroll) {
+      view.scrollTop = offset;
+    }
+  }
+
+  /*
+   * Scrolls to the given element in the window.  The second argument is
+   * ignored
+   */
+  this.scrollInWindow = function(element, ignored) {
+    var offset, viewHeight, viewScroll, height;
+    offset = element.offsetTop;
+    height = element.offsetHeight;
+    viewHeight = window.innerHeight;
+    viewScroll = window.scrollY;
+
+    if (offset - viewScroll + height > viewHeight) {
+      window.scrollTo(window.scrollX, offset - viewHeight + height);
+    }
+    if (offset < viewScroll) {
+      window.scrollTo(window.scrollX, offset);
+    }
+  }
+}
+
diff --git a/docs/rdoc/js/search.js b/docs/rdoc/js/search.js
new file mode 100644
index 0000000..60ac295
--- /dev/null
+++ b/docs/rdoc/js/search.js
@@ -0,0 +1,109 @@
+Search = function(data, input, result) {
+  this.data = data;
+  this.$input = $(input);
+  this.$result = $(result);
+
+  this.$current = null;
+  this.$view = this.$result.parent();
+  this.searcher = new Searcher(data.index);
+  this.init();
+}
+
+Search.prototype = $.extend({}, Navigation, new function() {
+  var suid = 1;
+
+  this.init = function() {
+    var _this = this;
+    var observer = function(e) {
+      switch(e.originalEvent.keyCode) {
+        case 38: // Event.KEY_UP
+        case 40: // Event.KEY_DOWN
+          return;
+      }
+      _this.search(_this.$input[0].value);
+    };
+    this.$input.keyup(observer);
+    this.$input.click(observer); // mac's clear field
+
+    this.searcher.ready(function(results, isLast) {
+      _this.addResults(results, isLast);
+    })
+
+    this.initNavigation();
+    this.setNavigationActive(false);
+  }
+
+  this.search = function(value, selectFirstMatch) {
+    value = jQuery.trim(value).toLowerCase();
+    if (value) {
+      this.setNavigationActive(true);
+    } else {
+      this.setNavigationActive(false);
+    }
+
+    if (value == '') {
+      this.lastQuery = value;
+      this.$result.empty();
+      this.$result.attr('aria-expanded', 'false');
+      this.setNavigationActive(false);
+    } else if (value != this.lastQuery) {
+      this.lastQuery = value;
+      this.$result.attr('aria-busy',     'true');
+      this.$result.attr('aria-expanded', 'true');
+      this.firstRun = true;
+      this.searcher.find(value);
+    }
+  }
+
+  this.addResults = function(results, isLast) {
+    var target = this.$result.get(0);
+    if (this.firstRun && (results.length > 0 || isLast)) {
+      this.$current = null;
+      this.$result.empty();
+    }
+
+    for (var i=0, l = results.length; i < l; i++) {
+      var item = this.renderItem.call(this, results[i]);
+      item.setAttribute('id', 'search-result-' + target.childElementCount);
+      target.appendChild(item);
+    };
+
+    if (this.firstRun && results.length > 0) {
+      this.firstRun = false;
+      this.$current = $(target.firstChild);
+      this.$current.addClass('search-selected');
+    }
+    if (jQuery.browser.msie) this.$element[0].className += '';
+
+    if (isLast) this.$result.attr('aria-busy', 'false');
+  }
+
+  this.move = function(isDown) {
+    if (!this.$current) return;
+    var $next = this.$current[isDown ? 'next' : 'prev']();
+    if ($next.length) {
+      this.$current.removeClass('search-selected');
+      $next.addClass('search-selected');
+      this.$input.attr('aria-activedescendant', $next.attr('id'));
+      this.scrollIntoView($next[0], this.$view[0]);
+      this.$current = $next;
+      this.$input.val($next[0].firstChild.firstChild.text);
+      this.$input.select();
+    }
+    return true;
+  }
+
+  this.hlt = function(html) {
+    return this.escapeHTML(html).
+      replace(/\u0001/g, '<em>').
+      replace(/\u0002/g, '</em>');
+  }
+
+  this.escapeHTML = function(html) {
+    return html.replace(/[&<>]/g, function(c) {
+      return '&#' + c.charCodeAt(0) + ';';
+    });
+  }
+
+});
+
diff --git a/docs/rdoc/js/search_index.js b/docs/rdoc/js/search_index.js
new file mode 100644
index 0000000..28dcfca
--- /dev/null
+++ b/docs/rdoc/js/search_index.js
@@ -0,0 +1 @@
+var search_data = {"index":{"searchIndex":["bishop","bayes","simpletokenizer","stemmingtokenizer","add_stop_word()","add_stop_words()","guess()","load_default_stop_words()","load_stop_words()","load_yaml()","merge_pools()","new()","new_pool()","pool()","pool_names()","remove_pool()","rename_pool()","robinson()","robinson_fisher()","save_yaml()","to_json()","to_yaml()","tokenize()","tokenize()","train()","trained_on?()","untrain()","changelog","readme"],"longSearchIndex":["bishop","bishop::bayes","bishop::simpletokenizer","bishop::stemmingtokenizer","bishop::bayes#add_stop_word()","bishop::bayes#add_stop_words()","bishop::bayes#guess()","bishop::bayes#load_default_stop_words()","bishop::bayes#load_stop_words()","bishop::bayes#load_yaml()","bishop::bayes#merge_pools()","bishop::bayes::new()","bishop::bayes#new_pool()","bishop::bayes#pool()","bishop::bayes#pool_names()","bishop::bayes#remove_pool()","bishop::bayes#rename_pool()","bishop::robinson()","bishop::robinson_fisher()","bishop::bayes#save_yaml()","bishop::bayes#to_json()","bishop::bayes#to_yaml()","bishop::simpletokenizer#tokenize()","bishop::stemmingtokenizer#tokenize()","bishop::bayes#train()","bishop::bayes#trained_on?()","bishop::bayes#untrain()","",""],"info":[["Bishop","","Bishop.html","",""],["Bishop::Bayes","","Bishop/Bayes.html","",""],["Bishop::SimpleTokenizer","","Bishop/SimpleTokenizer.html","","<p>A tokenizer class which splits words removing non word characters except\nhyphens.\n"],["Bishop::StemmingTokenizer","","Bishop/StemmingTokenizer.html","","<p>A tokenizer which, having split words, reduces them to porter stemmed\ntokens\n"],["add_stop_word","Bishop::Bayes","Bishop/Bayes.html#method-i-add_stop_word","( word )","<p>Add the specified stop word\n"],["add_stop_words","Bishop::Bayes","Bishop/Bayes.html#method-i-add_stop_words","( words )","<p>Add an array of stop words\n"],["guess","Bishop::Bayes","Bishop/Bayes.html#method-i-guess","( msg )","<p>Call this method to classify a “message”.  The return value will be a hash,\nwith the pool name …\n"],["load_default_stop_words","Bishop::Bayes","Bishop/Bayes.html#method-i-load_default_stop_words","()","<p>Load the default stop word list included with Bishop\n"],["load_stop_words","Bishop::Bayes","Bishop/Bayes.html#method-i-load_stop_words","( source )","<p>Load stopwords from the specified YAML formatted file\n"],["load_yaml","Bishop::Bayes","Bishop/Bayes.html#method-i-load_yaml","( file = 'bayesdata.yml' )","<p>Load the current state from a YAML file, default = &#39;bayesdata.yml&#39;\n"],["merge_pools","Bishop::Bayes","Bishop/Bayes.html#method-i-merge_pools","( dest_name, source_name )","<p>Merge the contents of the source pool into the destination destination\npool.\n"],["new","Bishop::Bayes","Bishop/Bayes.html#method-c-new","( tokenizer = SimpleTokenizer, &combiner )","<p>tokenizer is the name of the class that will separate the input into\ntokens.  See SimpleTokenizer and …\n"],["new_pool","Bishop::Bayes","Bishop/Bayes.html#method-i-new_pool","( pool_name )","<p>Create a new, empty, pool without training.\n"],["pool","Bishop::Bayes","Bishop/Bayes.html#method-i-pool","(pool_name)","<p>Get the pool specified by name\n"],["pool_names","Bishop::Bayes","Bishop/Bayes.html#method-i-pool_names","()","<p>Get a list of pools\n"],["remove_pool","Bishop::Bayes","Bishop/Bayes.html#method-i-remove_pool","( pool_name )","<p>Remove the given pool\n"],["rename_pool","Bishop::Bayes","Bishop/Bayes.html#method-i-rename_pool","( pool_name, new_name )","<p>Rename the given pool\n"],["robinson","Bishop","Bishop.html#method-c-robinson","( probs, ignore )","<p>default “combiner” set in initialize ignore is truly ignored\n"],["robinson_fisher","Bishop","Bishop.html#method-c-robinson_fisher","( probs, ignore )","<p>Alternative combiner\n"],["save_yaml","Bishop::Bayes","Bishop/Bayes.html#method-i-save_yaml","( file = 'bayesdata.yml' )","<p>Save the current state to a YAML file, default = &#39;bayesdata.yml&#39;\n"],["to_json","Bishop::Bayes","Bishop/Bayes.html#method-i-to_json","()","<p>Gets the current state in JSON format\n"],["to_yaml","Bishop::Bayes","Bishop/Bayes.html#method-i-to_yaml","()","<p>Gets the current state in YAML format\n"],["tokenize","Bishop::SimpleTokenizer","Bishop/SimpleTokenizer.html#method-i-tokenize","( item, stop_words=[] )",""],["tokenize","Bishop::StemmingTokenizer","Bishop/StemmingTokenizer.html#method-i-tokenize","( item, stop_words=[] )",""],["train","Bishop::Bayes","Bishop/Bayes.html#method-i-train","( pool_name, input )","<p>Train the specified pool with the given input.\n<p>If the input is a string it is passed through the configured …\n"],["trained_on?","Bishop::Bayes","Bishop/Bayes.html#method-i-trained_on-3F","( token )","<p>Returns true if the specified token has been trained for any pool\n"],["untrain","Bishop::Bayes","Bishop/Bayes.html#method-i-untrain","( pool_name, input )","<p>Remove the input from the given pool If the input is a string it is passed\nthrough the configured Tokenizer …\n"],["CHANGELOG","","CHANGELOG_md.html","","<p>Revisions\n<p>0.5.0\n<p>Lots of refactoring, cleanup, making methods private, etc.\n"],["README","","README_md.html","","<p>Introduction\n<p>This is a Naive Bayes classifier that can be used to categorize text based\non trained “pools”. …\n"]]}}
\ No newline at end of file
diff --git a/docs/rdoc/js/searcher.js b/docs/rdoc/js/searcher.js
new file mode 100644
index 0000000..f854b54
--- /dev/null
+++ b/docs/rdoc/js/searcher.js
@@ -0,0 +1,228 @@
+Searcher = function(data) {
+  this.data = data;
+  this.handlers = [];
+}
+
+Searcher.prototype = new function() {
+  // search is performed in chunks of 1000 for non-blocking user input
+  var CHUNK_SIZE = 1000;
+  // do not try to find more than 100 results
+  var MAX_RESULTS = 100;
+  var huid = 1;
+  var suid = 1;
+  var runs = 0;
+
+  this.find = function(query) {
+    var queries = splitQuery(query);
+    var regexps = buildRegexps(queries);
+    var highlighters = buildHilighters(queries);
+    var state = { from: 0, pass: 0, limit: MAX_RESULTS, n: suid++};
+    var _this = this;
+
+    this.currentSuid = state.n;
+
+    if (!query) return;
+
+    var run = function() {
+      // stop current search thread if new search started
+      if (state.n != _this.currentSuid) return;
+
+      var results =
+        performSearch(_this.data, regexps, queries, highlighters, state);
+      var hasMore = (state.limit > 0 && state.pass < 4);
+
+      triggerResults.call(_this, results, !hasMore);
+      if (hasMore) {
+        setTimeout(run, 2);
+      }
+      runs++;
+    };
+    runs = 0;
+
+    // start search thread
+    run();
+  }
+
+  /*  ----- Events ------  */
+  this.ready = function(fn) {
+    fn.huid = huid;
+    this.handlers.push(fn);
+  }
+
+  /*  ----- Utilities ------  */
+  function splitQuery(query) {
+    return jQuery.grep(query.split(/(\s+|::?|\(\)?)/), function(string) {
+      return string.match(/\S/)
+    });
+  }
+
+  function buildRegexps(queries) {
+    return jQuery.map(queries, function(query) {
+      return new RegExp(query.replace(/(.)/g, '([$1])([^$1]*?)'), 'i')
+    });
+  }
+
+  function buildHilighters(queries) {
+    return jQuery.map(queries, function(query) {
+      return jQuery.map(query.split(''), function(l, i) {
+        return '\u0001$' + (i*2+1) + '\u0002$' + (i*2+2);
+      }).join('');
+    });
+  }
+
+  // function longMatchRegexp(index, longIndex, regexps) {
+  //     for (var i = regexps.length - 1; i >= 0; i--){
+  //         if (!index.match(regexps[i]) && !longIndex.match(regexps[i])) return false;
+  //     };
+  //     return true;
+  // }
+
+
+  /*  ----- Mathchers ------  */
+
+  /*
+   * This record matches if the index starts with queries[0] and the record
+   * matches all of the regexps
+   */
+  function matchPassBeginning(index, longIndex, queries, regexps) {
+    if (index.indexOf(queries[0]) != 0) return false;
+    for (var i=1, l = regexps.length; i < l; i++) {
+      if (!index.match(regexps[i]) && !longIndex.match(regexps[i]))
+        return false;
+    };
+    return true;
+  }
+
+  /*
+   * This record matches if the longIndex starts with queries[0] and the
+   * longIndex matches all of the regexps
+   */
+  function matchPassLongIndex(index, longIndex, queries, regexps) {
+    if (longIndex.indexOf(queries[0]) != 0) return false;
+    for (var i=1, l = regexps.length; i < l; i++) {
+      if (!longIndex.match(regexps[i]))
+        return false;
+    };
+    return true;
+  }
+
+  /*
+   * This record matches if the index contains queries[0] and the record
+   * matches all of the regexps
+   */
+  function matchPassContains(index, longIndex, queries, regexps) {
+    if (index.indexOf(queries[0]) == -1) return false;
+    for (var i=1, l = regexps.length; i < l; i++) {
+      if (!index.match(regexps[i]) && !longIndex.match(regexps[i]))
+        return false;
+    };
+    return true;
+  }
+
+  /*
+   * This record matches if regexps[0] matches the index and the record
+   * matches all of the regexps
+   */
+  function matchPassRegexp(index, longIndex, queries, regexps) {
+    if (!index.match(regexps[0])) return false;
+    for (var i=1, l = regexps.length; i < l; i++) {
+      if (!index.match(regexps[i]) && !longIndex.match(regexps[i]))
+        return false;
+    };
+    return true;
+  }
+
+
+  /*  ----- Highlighters ------  */
+  function highlightRegexp(info, queries, regexps, highlighters) {
+    var result = createResult(info);
+    for (var i=0, l = regexps.length; i < l; i++) {
+      result.title = result.title.replace(regexps[i], highlighters[i]);
+      result.namespace = result.namespace.replace(regexps[i], highlighters[i]);
+    };
+    return result;
+  }
+
+  function hltSubstring(string, pos, length) {
+    return string.substring(0, pos) + '\u0001' + string.substring(pos, pos + length) + '\u0002' + string.substring(pos + length);
+  }
+
+  function highlightQuery(info, queries, regexps, highlighters) {
+    var result = createResult(info);
+    var pos = 0;
+    var lcTitle = result.title.toLowerCase();
+
+    pos = lcTitle.indexOf(queries[0]);
+    if (pos != -1) {
+      result.title = hltSubstring(result.title, pos, queries[0].length);
+    }
+
+    result.namespace = result.namespace.replace(regexps[0], highlighters[0]);
+    for (var i=1, l = regexps.length; i < l; i++) {
+      result.title = result.title.replace(regexps[i], highlighters[i]);
+      result.namespace = result.namespace.replace(regexps[i], highlighters[i]);
+    };
+    return result;
+  }
+
+  function createResult(info) {
+    var result = {};
+    result.title = info[0];
+    result.namespace = info[1];
+    result.path = info[2];
+    result.params = info[3];
+    result.snippet = info[4];
+    return result;
+  }
+
+  /*  ----- Searching ------  */
+  function performSearch(data, regexps, queries, highlighters, state) {
+    var searchIndex = data.searchIndex;
+    var longSearchIndex = data.longSearchIndex;
+    var info = data.info;
+    var result = [];
+    var i = state.from;
+    var l = searchIndex.length;
+    var togo = CHUNK_SIZE;
+    var matchFunc, hltFunc;
+
+    while (state.pass < 4 && state.limit > 0 && togo > 0) {
+      if (state.pass == 0) {
+        matchFunc = matchPassBeginning;
+        hltFunc = highlightQuery;
+      } else if (state.pass == 1) {
+        matchFunc = matchPassLongIndex;
+        hltFunc = highlightQuery;
+      } else if (state.pass == 2) {
+        matchFunc = matchPassContains;
+        hltFunc = highlightQuery;
+      } else if (state.pass == 3) {
+        matchFunc = matchPassRegexp;
+        hltFunc = highlightRegexp;
+      }
+
+      for (; togo > 0 && i < l && state.limit > 0; i++, togo--) {
+        if (info[i].n == state.n) continue;
+        if (matchFunc(searchIndex[i], longSearchIndex[i], queries, regexps)) {
+          info[i].n = state.n;
+          result.push(hltFunc(info[i], queries, regexps, highlighters));
+          state.limit--;
+        }
+      };
+      if (searchIndex.length <= i) {
+        state.pass++;
+        i = state.from = 0;
+      } else {
+        state.from = i;
+      }
+    }
+    return result;
+  }
+
+  function triggerResults(results, isLast) {
+    jQuery.each(this.handlers, function(i, fn) {
+      fn.call(this, results, isLast)
+    })
+  }
+}
+
diff --git a/docs/rdoc/rdoc.css b/docs/rdoc/rdoc.css
new file mode 100644
index 0000000..4f22ada
--- /dev/null
+++ b/docs/rdoc/rdoc.css
@@ -0,0 +1,580 @@
+/*
+ * "Darkfish" Rdoc CSS
+ * $Id: rdoc.css 54 2009-01-27 01:09:48Z deveiant $
+ *
+ * Author: Michael Granger <ged@FaerieMUD.org>
+ *
+ */
+
+/* vim: ft=css et sw=2 ts=2 sts=2 */
+/* Base Green is: #6C8C22 */
+
+* { padding: 0; margin: 0; }
+
+body {
+  background: #fafafa;
+  font-family: Lato, sans-serif;
+  font-weight: 300;
+}
+
+h1 span,
+h2 span,
+h3 span,
+h4 span,
+h5 span,
+h6 span {
+  display: none;
+  padding-left: 1em;
+  font-size: 10px;
+  vertical-align: super;
+}
+
+h1:hover span,
+h2:hover span,
+h3:hover span,
+h4:hover span,
+h5:hover span,
+h6:hover span {
+  display: inline;
+}
+
+:link,
+:visited {
+  color: #6C8C22;
+  text-decoration: none;
+}
+
+:link:hover,
+:visited:hover {
+  border-bottom: 1px dotted #6C8C22;
+}
+
+code,
+pre {
+  font-family: "Source Code Pro", Monaco, monospace;
+}
+
+/* @group Generic Classes */
+
+.initially-hidden {
+  display: none;
+}
+
+#search-field {
+  width: 98%;
+  background: white;
+  border: none;
+  height: 1.5em;
+  -webkit-border-radius: 4px;
+  -moz-border-radius: 4px;
+  border-radius: 4px;
+  text-align: left;
+}
+#search-field:focus {
+  background: #f1edba;
+}
+#search-field:-moz-placeholder,
+#search-field::-webkit-input-placeholder {
+  font-weight: bold;
+  color: #666;
+}
+
+.missing-docs {
+  font-size: 120%;
+  background: white url(images/wrench_orange.png) no-repeat 4px center;
+  color: #ccc;
+  line-height: 2em;
+  border: 1px solid #d00;
+  opacity: 1;
+  padding-left: 20px;
+  text-indent: 24px;
+  letter-spacing: 3px;
+  font-weight: bold;
+  -webkit-border-radius: 5px;
+  -moz-border-radius: 5px;
+}
+
+.target-section {
+  border: 2px solid #dcce90;
+  border-left-width: 8px;
+  padding: 0 1em;
+  background: #fff3c2;
+}
+
+/* @end */
+
+/* @group Index Page, Standalone file pages */
+.table-of-contents ul {
+  margin: 1em;
+  list-style: none;
+}
+
+.table-of-contents ul ul {
+  margin-top: 0.25em;
+}
+
+.table-of-contents ul :link,
+.table-of-contents ul :visited {
+  font-size: 16px;
+}
+
+.table-of-contents li {
+  margin-bottom: 0.25em;
+}
+
+.table-of-contents li .toc-toggle {
+  width: 16px;
+  height: 16px;
+  background: url(images/add.png) no-repeat;
+}
+
+.table-of-contents li .toc-toggle.open {
+  background: url(images/delete.png) no-repeat;
+}
+
+/* @end */
+
+/* @group Top-Level Structure */
+
+nav {
+  float: left;
+  width: 260px;
+  font-family: Helvetica, sans-serif;
+  font-size: 14px;
+}
+
+main {
+  display: block;
+  margin: 0 2em 5em 260px;
+  padding-left: 20px;
+  min-width: 340px;
+  font-size: 16px;
+}
+
+main h1,
+main h2,
+main h3,
+main h4,
+main h5,
+main h6 {
+  font-family: Helvetica, sans-serif;
+}
+
+.table-of-contents main {
+  margin-left: 2em;
+}
+
+#validator-badges {
+  clear: both;
+  margin: 1em 1em 2em;
+  font-size: smaller;
+}
+
+/* @end */
+
+/* @group navigation */
+nav {
+  margin-bottom: 1em;
+}
+
+nav .nav-section {
+  margin-top: 2em;
+  border-top: 2px solid #aaa;
+  font-size: 90%;
+  overflow: hidden;
+}
+
+nav h2 {
+  margin: 0;
+  padding: 2px 8px 2px 8px;
+  background-color: #e8e8e8;
+  color: #555;
+  font-size: 125%;
+  text-align: center;
+}
+
+nav h3,
+#table-of-contents-navigation {
+  margin: 0;
+  padding: 2px 8px 2px 8px;
+  text-align: right;
+  background-color: #e8e8e8;
+  color: #555;
+}
+
+nav ul,
+nav dl,
+nav p {
+  padding: 4px 8px 0;
+  list-style: none;
+}
+
+#project-navigation .nav-section {
+  margin: 0;
+  border-top: 0;
+}
+
+#home-section h2 {
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+}
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+main ol,
+main ul {
+  margin: 1em 2em;
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+  margin-bottom: 0.5em;
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+  margin: 0 1em 1em 0.5em;
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+}
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+}
+.documentation-section-title .section-click-top {
+  position: absolute;
+  top: 6px;
+  left: 12px;
+  font-size: 10px;
+  color: #9b9877;
+  visibility: hidden;
+  padding-left: 0.5px;
+}
+
+.documentation-section-title:hover .section-click-top {
+  visibility: visible;
+}
+
+.constants-list > dl {
+  margin: 1em 0 2em;
+  border: 0;
+}
+
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+  margin-bottom: 0.75em;
+  padding-left: 0;
+  font-family: "Source Code Pro", Monaco, monospace;
+  font-size: 110%;
+}
+
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+  color: inherit;
+}
+
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+  margin: 0 0 2em 0;
+  padding: 0;
+  color: #666;
+}
+
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+  position: relative;
+}
+
+.documentation-section h2 a {
+  position: absolute;
+  top: 8px;
+  right: 10px;
+  font-size: 12px;
+  color: #9b9877;
+  visibility: hidden;
+}
+
+.documentation-section h2:hover a {
+  visibility: visible;
+}
+
+/* @group Method Details */
+
+main .method-source-code {
+  display: none;
+}
+
+main .method-description .method-calls-super {
+  color: #333;
+  font-weight: bold;
+}
+
+main .method-detail {
+  margin-bottom: 2.5em;
+  cursor: pointer;
+}
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+main .method-detail:target {
+  margin-left: -10px;
+  border-left: 10px solid #f1edba;
+}
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+  position: relative;
+  font-family: "Source Code Pro", Monaco, monospace;
+  font-size: 110%;
+  font-weight: bold;
+  color: #333;
+}
+main .method-heading :link,
+main .method-heading :visited {
+  color: inherit;
+}
+main .method-click-advice {
+  position: absolute;
+  top: 2px;
+  right: 5px;
+  font-size: 12px;
+  color: #9b9877;
+  visibility: hidden;
+  padding-right: 20px;
+  line-height: 20px;
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+}
+main .method-heading:hover .method-click-advice {
+  visibility: visible;
+}
+
+main .method-alias .method-heading {
+  color: #666;
+}
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+main .method-description,
+main .aliases {
+  margin-top: 0.75em;
+  color: #333;
+}
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+main .aliases {
+  padding-top: 4px;
+  font-style: italic;
+  cursor: default;
+}
+main .method-description ul {
+  margin-left: 1.5em;
+}
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+main #attribute-method-details .method-detail:hover {
+  background-color: transparent;
+  cursor: default;
+}
+main .attribute-access-type {
+  text-transform: uppercase;
+  padding: 0 1em;
+}
+/* @end */
+
+/* @end */
+
+/* @group Source Code */
+
+pre {
+  margin: 0.5em 0;
+  border: 1px dashed #999;
+  padding: 0.5em;
+  background: #262626;
+  color: white;
+  overflow: auto;
+}
+
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+
+/* @end */
+
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+/* @group search results */
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+  font-family: Lato, sans-serif;
+  font-weight: 300;
+}
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+  font-family: Helvetica, sans-serif;
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+}
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+  font-style: normal;
+}
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+#search-results pre {
+  margin: 0.5em;
+  font-family: "Source Code Pro", Monaco, monospace;
+}
+
+/* @end */
+
diff --git a/docs/rdoc/table_of_contents.html b/docs/rdoc/table_of_contents.html
new file mode 100644
index 0000000..873a36e
--- /dev/null
+++ b/docs/rdoc/table_of_contents.html
@@ -0,0 +1,192 @@
+<!DOCTYPE html>
+
+<html>
+<head>
+<meta charset="UTF-8">
+
+<title>Table of Contents - Bayes::Bishop Documentation</title>
+
+<link href="./fonts.css" rel="stylesheet">
+<link href="./rdoc.css" rel="stylesheet">
+
+<script type="text/javascript">
+  var rdoc_rel_prefix = "./";
+</script>
+
+<script src="./js/jquery.js"></script>
+<script src="./js/navigation.js"></script>
+<script src="./js/search_index.js"></script>
+<script src="./js/search.js"></script>
+<script src="./js/searcher.js"></script>
+<script src="./js/darkfish.js"></script>
+
+
+<body id="top" class="table-of-contents">
+<main role="main">
+<h1 class="class">Table of Contents - Bayes::Bishop Documentation</h1>
+
+<h2 id="pages">Pages</h2>
+<ul>
+  <li class="file">
+    <a href="CHANGELOG_md.html">CHANGELOG</a>
+
+    <ul>
+      <li><a href="CHANGELOG_md.html#label-Revisions">Revisions</a>
+      <li><a href="CHANGELOG_md.html#label-0.5.0">0.5.0</a>
+    </ul>
+  </li>
+    <li class="file">
+    <a href="README_md.html">README</a>
+
+    <ul>
+      <li><a href="README_md.html#label-Introduction">Introduction</a>
+      <li><a href="README_md.html#label-Usage">Usage</a>
+      <li><a href="README_md.html#label-Features">Features</a>
+    </ul>
+  </li>
+  
+</ul>
+
+<h2 id="classes">Classes and Modules</h2>
+<ul>
+  <li class="module">
+    <a href="Bishop.html">Bishop</a>
+  </li>
+  <li class="class">
+    <a href="Bishop/Bayes.html">Bishop::Bayes</a>
+  </li>
+  <li class="class">
+    <a href="Bishop/SimpleTokenizer.html">Bishop::SimpleTokenizer</a>
+  </li>
+  <li class="class">
+    <a href="Bishop/StemmingTokenizer.html">Bishop::StemmingTokenizer</a>
+  </li>
+</ul>
+
+<h2 id="methods">Methods</h2>
+<ul>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-c-new">::new</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop.html#method-c-robinson">::robinson</a>
+    &mdash;
+    <span class="container">Bishop</span>
+
+  <li class="method">
+    <a href="Bishop.html#method-c-robinson_fisher">::robinson_fisher</a>
+    &mdash;
+    <span class="container">Bishop</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-add_stop_word">#add_stop_word</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-add_stop_words">#add_stop_words</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-guess">#guess</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-load_default_stop_words">#load_default_stop_words</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-load_stop_words">#load_stop_words</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-load_yaml">#load_yaml</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-merge_pools">#merge_pools</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-new_pool">#new_pool</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-pool">#pool</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-pool_names">#pool_names</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-remove_pool">#remove_pool</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-rename_pool">#rename_pool</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-save_yaml">#save_yaml</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-to_json">#to_json</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-to_yaml">#to_yaml</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/StemmingTokenizer.html#method-i-tokenize">#tokenize</a>
+    &mdash;
+    <span class="container">Bishop::StemmingTokenizer</span>
+
+  <li class="method">
+    <a href="Bishop/SimpleTokenizer.html#method-i-tokenize">#tokenize</a>
+    &mdash;
+    <span class="container">Bishop::SimpleTokenizer</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-train">#train</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-trained_on-3F">#trained_on?</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+
+  <li class="method">
+    <a href="Bishop/Bayes.html#method-i-untrain">#untrain</a>
+    &mdash;
+    <span class="container">Bishop::Bayes</span>
+</ul>
+</main>
+
+
+<footer id="validator-badges" role="contentinfo">
+  <p><a href="http://validator.w3.org/check/referer">Validate</a>
+  <p>Generated by <a href="http://rdoc.rubyforge.org">RDoc</a> 4.1.0.
+  <p>Based on <a href="http://deveiate.org/projects/Darkfish-Rdoc/">Darkfish</a> by <a href="http://deveiate.org">Michael Granger</a>.
+</footer>
+
diff --git a/lib/bayes/bishop.rb b/lib/bayes/bishop.rb
index 320b5ad..b6a7381 100755
--- a/lib/bayes/bishop.rb
+++ b/lib/bayes/bishop.rb
@@ -1,95 +1,203 @@
+# This is a Naive Bayes classifier that can be used to categorize text based on trained "pools".
+# 
+# Copyright 2014, Maymount Enterprises, Ltd. <richard@maymount.com> 
 #
-# This module is a port to the Ruby language of the Reverend Bayesian classifier distributed
-# as part of the Divmod project (which is Copyright 2003 Amir Bakhtiar <amir@divmod.org>
+# It is a port to the Ruby language of the Divmod project (which is Copyright 2003 Amir Bakhtiar <amir@divmod.org> 
+# and based on the Ruby port, Copyright 2005 by Matt Mower <self@mattmower.com> 
 #
-# This Ruby port is Copyright 2005 Matt Mower <self@mattmower.com> and is free software;
-# you can distribute it and/or modify it under the terms of version 2.1 of the GNU
-# Lesser General Public License as published by the Free Software Foundation.
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser Public License for more details.
+#
+# You should have received a copy of the GNU Lesser Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# 
+ 
 
 require 'yaml'
 require 'stemmer'
+require 'json'
 
 module Bishop
 
-  #
-  # As at v1.8 Ruby's YAML persists Hashes using special processing rather
-  # than by dumping it's instance variables, hence no instance variables
-  # in a Hash subclass get dumped either.
-  #
-  class BayesData
-  
-    attr_accessor :token_count, :train_count, :name
-    attr_reader :training, :data
+  class BayesPool #:nodoc:
+    include Enumerable
+    
+    # Sum of token counts in the pool
+    attr_reader :token_count 
+    
+    # Number of times train has been called for this pool
+    attr_accessor :train_count 
+    
+    # Hash that contains counts for all tokens
+    attr_reader :data 
   
-    def initialize( name = '', pool = nil )
-      @name = name
-      @training = []
-      @pool = pool
+    def initialize
       @data = Hash.new( 0.0 )
-      self.token_count = 0
-      self.train_count = 0
+      @token_count = 0
+      @train_count = 0
     end
     
-    def trained_on?( item )
-      self.training.include? item
+    # Iterate through the tokens in the pool
+    def each
+      @data.each
     end
     
     def to_s
-      "<BayesDict: #{self.name || noname}, #{self.token_count} tokens>"
+      "<BayesPool: #{@token_count} tokens>"
+    end
+    
+    # Convert the pool into an array of the format [['token1',count1],['token2',count2],...]
+    def to_a
+      @data.to_a
     end
   
+    # Return all of the tokens in the pool
+    def tokens
+      @data.keys.sort
+    end
+    
+    # Return the number of tokens in the pool
+    def num_tokens
+      @data.length
+    end
+    
+    # Add a token to the pool, incrementing its count value, and updating the token_value
+    def add_token token, count = 1
+      if @data.has_key?(token)
+        @data[token] = @data[token] + count
+      else
+        @data[token] = count
+      end
+      
+      @token_count = @token_count + count
+    end
+
+    # Set the count for a the specified token
+    def []= token, count
+      add_token(token,count)
+    end
+    
+    # Get the count for the specified token
+    def [] token
+      @data[token]
+    end
+    
+    # Merge another pool into the current pool
+    def merge(other_pool)
+      other_pool.data.each { |token,count| add_token(token,count) }
+    end
+    
+    # Decrement the token count and remove the token if the count is 0
+    def remove_token token, count = 1
+      @data[token] -= count
+      @data.delete(token) if @data[token] < 1
+      @token_count = @token_count - count
+    end
   end
   
   # A tokenizer class which splits words removing non word characters except hyphens.
   class SimpleTokenizer
-    def tokenize( item, stop_words )
+    def tokenize( item, stop_words=[] )
       item.split( /\s+/ ).map do |i|
-        token = i.split( /\-/ ).map { |token| token.downcase.gsub( /\W/, "" ) }.join( "-" )
+        i.split( /\-/ ).map { |token| token.downcase.gsub( /\W/, "" ) }.join( "-" )
       end.reject { |t| t == "" || t == "-" || stop_words.detect { |w| w == t } }
     end
   end
   
   # A tokenizer which, having split words, reduces them to porter stemmed tokens
   class StemmingTokenizer < SimpleTokenizer
-    def tokenize( item, stop_words )
+    def tokenize( item, stop_words=[] )
       super( item, stop_words ).map { |word| word.stem }
     end
   end
   
   class Bayes
   
-    attr_accessor :dirty, :train_count, :pools, :tokenizer, :data_class, :corpus, :cache, :combiner
-    attr_reader :data_class, :stop_words
+    # instance of Tokenizer that handles tokenization
+    attr_accessor :tokenizer 
+    
+    # Block called to combine probabilities.  Set to Bishop.robinson by default
+    attr_accessor :combiner 
+    
+    # An array containing stop words that the tokenizer will ignore
+    attr_reader :stop_words 
+
+    @dirty = true # set to true for any changes, false when pool_probs is called
+    @corpus_data = nil # __Corpus__ pool, created when corpus method called
+    @cache = nil # hash of BayesPool objects that contain probabilities instead of counts
   
-    def initialize( tokenizer = SimpleTokenizer, data_class = BayesData, &combiner )
+    # tokenizer is the name of the class that will separate the input into tokens. 
+    # See SimpleTokenizer and StemmingTokenizer for more information.
+    # Combiner defaults to a block that calls Bishop.robinson
+    def initialize( tokenizer = SimpleTokenizer, &combiner )
       @tokenizer = tokenizer.new
       @combiner = combiner || Proc.new { |probs,ignore| Bishop.robinson( probs, ignore ) }
-      @data_class = data_class
-      @pools = {}
-      @corpus = new_pool( '__Corpus__' )
-      @pools['__Corpus__'] = @corpus
-      @train_count = 0
-      @dirty = true
+      @pools = {} # hash, key = pool name, value = BayesPool class
+      @cache = {} # created by calling build_cache, contains raw probabilities
+      @corpus_data = nil # created when corpus method is called, contains token totals
+      @dirty = true # indicates that cache and corpus_data are invalid
       @stop_words = []
     end
+
+    
+    #
+    # == POOLS
+    # 
+    
+    # Get the pool specified by name
+    def pool pool_name
+      @pools[pool_name]
+    end
     
-    def commit
-      self.save
+    # Get a list of pools
+    def pool_names
+      @pools.keys.sort
+	  end
+    
+    # Create a new, empty, pool without training.
+    def new_pool( pool_name )
+      @dirty = true
+      @pools[ pool_name ] ||= BayesPool.new
     end
     
-    def dirty?
-      self.dirty
+    # Remove the given pool
+    def remove_pool( pool_name )
+      @dirty = true
+      @pools.delete( pool_name ) 
+    end 
+
+    # Rename the given pool
+    def rename_pool( pool_name, new_name )
+      @pools[new_name] = @pools[pool_name]
+      @pools.delete( pool_name )
+      @dirty = true
+    end
+
+    # Merge the contents of the source pool into the destination destination pool.
+    def merge_pools( dest_name, source_name )
+      @pools[dest_name].merge(@pools[source_name])
+      @dirty = true  
     end
     
-    # Add each of the specified stop words
+    #
+    # == STOP WORDS
+    #
+  
+    # Add an array of stop words
     def add_stop_words( words )
-      words.each { |word| add_stop_word word }
+      words.each { |word| add_stop_word word if !word.empty? }
     end
     
     # Add the specified stop word
     def add_stop_word( word )
-      @stop_words << word unless @stop_words.include? word
+      @stop_words << word.downcase if !@stop_words.include?(word.downcase)
     end
     
     # Load stopwords from the specified YAML formatted file
@@ -102,63 +210,52 @@ def load_default_stop_words
       load_stop_words( File.join( File.dirname( __FILE__ ), 'stopwords.yml' ) )
     end
     
-    # Create a new, empty, pool without training.
-    def new_pool( pool_name )
-      self.dirty = true
-      self.pools[ pool_name ] ||= @data_class.new( pool_name )
-    end
-   
-    def remove_pool( pool_name )
-      self.pools.delete( pool_name ) 
-    end 
-
-    def rename_pool( pool_name, new_name )
-      self.pools[new_name] = self.pools[pool_name]
-      self.pools[new_name].name = new_name
-      self.pools.delete( pool_name )
-      self.dirty = true
-    end
+    #
+    # EXPORT & IMPORT STATE
+    #
 
-    # Merge the contents of the source pool into the destination
-    # destination pool.
-    def merge_pools( dest_name, source_name )
-      dest_pool = self.pools[dest_name]
-      self.pools[source_name].data.each do |token,count|
-        if dest_pool.data.has_key?( token )
-          dest_pool.data[token] += count
-        else
-          dest_pool.data[token] = count
-          dest_pool.token_count += 1
+    # Get a hash that represents the current state, excluding tokenizer and combiner
+    def export
+      h = { 
+        :stop_words => @stop_words.join(',')
+      }
+      pools = {}
+      @pools.each do |pool_name,pool|
+        data = pool.data
+        sorted_data = data.sort do |a,b|
+          if a[1] == b[1]
+            a[0] <=> b[0]
+          else
+            a[1] <=> b[1]
+          end
         end
+        pools[pool_name] = {
+          :token_count => pool.token_count,
+          :train_count => pool.train_count,
+          :data => sorted_data.to_h
+        }
       end
-      self.dirty = true  
+      h[:pools] = pools
+      h
     end
-  
-    # Return an array of token counts for the specified pool.
-    def pool_data( pool_name )
-      self.pools[pool_name].data.to_a
-    end
-
-    # Return an array of tokens trained in the specified pool.  
-    def pool_tokens( pool_name )
-      self.pools[pool_name].data.keys
+    
+    # Gets the current state in YAML format
+    def to_yaml
+      export.to_yaml
     end
     
-    # Create a representation of the state of the classifier which can
-    # be reloaded later.  This does not include the tokenizer, data class,
-    # or combiner functions which must be reinitialized each time the
-    # classifier is created.
-    def save( file = 'bayesdata.yml' )
-      File.open( file, 'w' ) { |f| f << export }
+    # Gets the current state in JSON format
+    def to_json
+      JSON.pretty_generate(export)
     end
     
-    # Define the YAML representation of the state of the classifier (possibly this
-    # should just be an override of the to_yaml method generated by the YAML module).
-    def export
-      { :pools => self.pools, :train_count => self.train_count, :stop_words => self.stop_words }.to_yaml
+    # Save the current state to a YAML file, default = 'bayesdata.yml'
+    def save_yaml( file = 'bayesdata.yml' )
+      File.open( file, 'w' ) { |f| f << to_yaml }
     end
-  
-    def load( file = 'bayesdata.yml' )
+    
+    # Load the current state from a YAML file, default = 'bayesdata.yml'
+    def load_yaml( file = 'bayesdata.yml' )
       begin
         File.open( file ) { |f| load_data( f ) }
       rescue Errno::ENOENT
@@ -166,50 +263,132 @@ def load( file = 'bayesdata.yml' )
       end
     end
     
+    #
+    # TRAIN & GUESS
+    #
+    
+    # Train the specified pool with the given input.  
+    # If the input is a string it is passed through the configured Tokenizer.
+    # Otherwise, if it is an array it is just added.
+    def train( pool_name, input )
+      tokens = input.is_a?(String) ? get_tokens( input ) : input
+      pool = new_pool( pool_name )
+      train_( pool, tokens )
+      pool.train_count += 1
+      @dirty = true
+    end
+    
+    # Remove the input from the given pool
+    # If the input is a string it is passed through the configured Tokenizer.
+    # Otherwise, if it is an array it is just added.
+    def untrain( pool_name, input )
+      pool = find_pool( pool_name )
+      return if !pool
+      tokens = input.is_a?(String) ? get_tokens( input ) : input
+      untrain_( pool, tokens )
+      pool.train_count -= 1
+      @dirty = true  
+    end
+
+    # Returns true if the specified token has been trained for any pool
+    def trained_on?( token )
+      build_cache if @dirty
+      @cache.values.any? { |v| v.trained_on? token }
+    end
+      
+    # Call this method to classify a "message".  The return value will be
+    # a hash, with the pool name is the key and the probability is the value, for each pool which
+    # is a likely match for the message.
+    def guess( msg )
+      tokens = get_tokens( msg )
+      res = {}
+      
+      build_cache if dirty?
+      
+      @cache.each do |pool_name,pool|
+        p = get_probs( pool, tokens )
+        if p.length != 0
+          res[pool_name] = @combiner.call( p, pool_name )
+        end    
+      end
+      
+      h = Hash.new
+      res.sort.each { |a| h[a[0]] = a[1] }
+      h
+    end
+    
+    #
+    # Private Methods
+    #
+      
     def load_data( source )
       data = YAML.load( source )
+      data[:pools].each do |pool_name,pool_data|
+        pool = new_pool(pool_name)
+        pool.train_count = pool_data[:train_count]
+        pool_data[:data].each do |token,value|
+          pool.add_token(token,value)
+        end
+      end
+      
+      add_stop_words(data[:stop_words].split(','))
+      
+      @dirty = true
+    end
+    
+    def dirty? # TODO Make private?
+      @dirty
+    end
+    
+    def train_( pool, tokens )
+      tokens.each { |token| pool.add_token(token) }
+    end
+    
+    def untrain_( pool, tokens )
+      tokens.each do |token|
+        pool.remove_token(token)
+      end
+    end
+    
+    def corpus
+      return @corpus_data if @corpus_data
       
-      @pools = data[:pools]
-      @pools.each { |pool_name,pool| pool.data.default = 0.0 }
-      @corpus = self.pools['__Corpus__']
+      @corpus_data = BayesPool.new
       
-      @train_count = data[:train_count]
-      @stop_words = data[:stop_words]
+      @pools.each do |pool_name, pool| 
+        @corpus_data.merge(pool)       
+      end
       
-      self.dirty = true
+      @corpus_data
     end
     
-    def pool_names
-      self.pools.keys.sort.reject { |name| name == '__Corpus__' }
-	end
-  
     # Create a cache of the metrics for each pool.
     def build_cache
-      self.cache = {}
+      @cache = {}
       
-      self.pools.each do |name,pool|
-        unless name == '__Corpus__'
-        
-          pool_count = pool.token_count
-          them_count = [ 1, self.corpus.token_count - pool_count ].max
-          cache_dict = self.cache[ name ] ||= @data_class.new( name )
+      return @cache if corpus.token_count == 0.0
+
+      @pools.each do |pool_name,pool|
+        if pool.token_count > 0
+          cache_dict = @cache[ pool_name ] ||= BayesPool.new
           
-          self.corpus.data.each do |token,tot_count|
-            this_count = pool.data[token]
+          them_count = [ 1, corpus.token_count - pool.token_count ].max  # tokens in other pools
 
-            unless this_count == 0.0
-              other_count = tot_count - this_count
+          corpus.data.each do |token,corpus_count|
+            if pool.data.has_key?(token)
               
-              if pool_count > 0
-                good_metric = [ 1.0, other_count / pool_count ].min
-              else
-                good_metric = 1.0
-              end
+              # number of references in other pools
+              other_count = corpus_count - pool.data[token] 
+              
+              # prob token is not in this pool
+              good_metric = [ 1.0, Float(other_count) / Float(pool.token_count) ].min 
             
-              bad_metric = [ 1.0, this_count / them_count ].min
+              # prob token is in a different pool
+              # NOTE Must explicitly cast to Floats or else it does integration division, and the result is zero
+              bad_metric = [ 1.0, Float(pool.data[token]) / Float(them_count) ].min 
             
               f = bad_metric / ( good_metric + bad_metric )
-              
+
               if ( f - 0.5 ).abs >= 0.1
                 cache_dict.data[token] = [ 0.0001, [ 0.9999, f ].min ].max
               end  
@@ -217,21 +396,13 @@ def build_cache
           end
         end
       end
+      @dirty = false
+      @cache
     end    
-
-    # Get the probabilities for each pool, recreating the cached information if
-    # any token information for any of the pools has changed.
-    def pool_probs
-      if self.dirty?
-        self.build_cache
-        self.dirty = false
-      end    
-      self.cache
-    end
     
     # Create a token array from the specified input.
     def get_tokens( input )
-      self.tokenizer.tokenize( input, self.stop_words )
+      @tokenizer.tokenize( input, @stop_words )
     end
     
     # For each word trained in the pool, collect it's occurrence data in the pool into a sorted array.
@@ -239,87 +410,12 @@ def get_probs( pool, words )
       words.find_all { |word| pool.data.has_key? word }.map { |word| [word,pool.data[word]] }.sort
     end
     
-    def train( pool_name, item, uid = nil )
-      tokens = get_tokens( item )
-      pool = new_pool( pool_name )
-      train_( pool, tokens )
-      self.corpus.train_count += 1
-      pool.train_count += 1
-      if uid
-        pool.training.push( uid )
-      end    
-      self.dirty = true
-    end
-    
-    def train_( pool, tokens )
-      wc = 0
-      tokens.each do |token|
-        pool.data[token] += 1
-        self.corpus.data[token] += 1
-        wc += 1
-      end
-      pool.token_count += wc
-      self.corpus.token_count += wc
-    end
-    
-    def untrain( pool_name, item, uid = nil )
-      tokens = get_tokens( item )
-      pool = new_pool( pool_name )
-      untrain_( pool, tokens )
-      self.corpus.train_count += 1
-      pool.train_count += 1
-      if uid
-        pool.training.delete( uid )
-      end    
-      self.dirty = true  
-    end
-    
-    def untrain_( pool, tokens )
-      tokens.each do |token|
-        if pool.data.has_key? token
-          if pool.data[token] == 1
-            pool.data.delete( token )
-          else
-            pool.data[token] -= 1
-          end
-          pool.token_count -= 1        
-        end
-        
-        if self.corpus.data.has_key? token
-          if self.corpus.data[token] == 1
-            self.corpus.data.delete( token )
-          else
-            self.corpus.data[token] -= 1
-          end
-          self.corpus.token_count -= 1
-        end        
-      end
-    end
-    
-    def trained_on?( msg )
-      self.cache.values.any? { |v| v.trained_on? msg }
-    end
-      
-    # Call this method to classify a "message".  The return value will be
-    # an array containing tuples (pool, probability) for each pool which
-    # is a likely match for the message.
-    def guess( msg )
-      tokens = get_tokens( msg )
-      res = {}
-      
-      pool_probs.each do |pool_name,pool|
-        p = get_probs( pool, tokens )
-        if p.length != 0
-          res[pool_name] = self.combiner.call( p, pool_name )
-        end    
-      end
-      
-      res.sort
-    end
+    private :train_, :untrain_, :get_probs, :corpus, :build_cache, :dirty?, :get_tokens, :get_probs, :export, :load_data
 
-    private :train_, :untrain_
   end
   
+  # default "combiner" set in initialize
+  # ignore is truly ignored
   def self.robinson( probs, ignore )
     nth = 1.0/probs.length
     what_is_p = 1.0 - probs.map { |p| 1.0 - p[1] }.inject( 1.0 ) { |s,v| s * v } ** nth
@@ -328,6 +424,7 @@ def self.robinson( probs, ignore )
     ( 1 + what_is_s ) / 2
   end
    
+  # Alternative combiner
   def self.robinson_fisher( probs, ignore )
     n = probs.length
     
@@ -346,7 +443,7 @@ def self.robinson_fisher( probs, ignore )
     ( 1 + h - s ) / 2
   end
   
-  def self.chi2p( chi, df )
+  def self.chi2p( chi, df ) #:nodoc:
     m = chi / 2
     sum = term = Math.exp( -m )
     (1 .. df/2).each do |i|
@@ -355,5 +452,4 @@ def self.chi2p( chi, df )
     end
     [1.0, sum].min
   end
-  
 end
\ No newline at end of file
diff --git a/test/test_bayes.rb b/test/test_bayes.rb
new file mode 100644
index 0000000..4d71efd
--- /dev/null
+++ b/test/test_bayes.rb
@@ -0,0 +1,206 @@
+require 'rubygems'
+require 'bundler'
+require 'minitest'
+require 'minitest/autorun'
+Bundler.require(:default, :test)
+
+require_relative '../lib/bayes/bishop'
+
+class TestBayes < Minitest::Test
+  parallelize_me!
+
+  LINCOLN1 = "Four score and seven years ago our fathers brought forth on this continent,"+
+    " a new nation, conceived in Liberty, and dedicated to the proposition that all"+
+    " men are created equal."
+  LINCOLN2 ="Now we are engaged in a great civil war, testing whether that nation, "+
+    "or any nation so conceived and so dedicated, can long endure. We are met on"+
+    " a great battle-field of that war. We have come to dedicate a portion of that"+
+    " field, as a final resting place for those who here gave their lives that that"+
+    " nation might live. It is altogether fitting and proper that we should do this."
+  LINCOLN3 = "But, in a larger sense, we can not dedicate -- we can not consecrate -- we can not hallow --"+
+  " this ground. "
+  LINCOLN4 = "The brave men, living and dead, who struggled here, have consecrated it, far above our poor power to add or detract. "
+  
+  JABBER1 = "Beware the Jabberwock, my son!"+
+    " The jaws that bite, the claws that catch!"+
+    " Beware the Jubjub bird, and shun The frumious Bandersnatch!"
+  JABBER2 = "He took his vorpal sword in hand:"+
+    " Long time the manxome foe he sought -- " +
+    " So rested he by the Tumtum tree, " +
+    " And stood awhile in thought. "
+  JABBER3 = "And, as in uffish thought he stood, " +
+    " The Jabberwock, with eyes of flame, " +
+    " Came whiffling through the tulgey wood, " +
+    " And burbled as it came!"  
+  JABBER4 = "One, two! One, two! And through and through" +
+    " The vorpal blade went snicker-snack! " +
+    " He left it dead, and with its head " +
+    " He went galumphing back." 
+    
+  ROMEO = "Two households, both alike in dignity, "+
+        "In fair Verona, where we lay our scene, "+
+        "From ancient grudge break to new mutiny, "
+        
+  def test_bayes_initializer
+    b = Bishop::Bayes.new
+    assert_instance_of Bishop::SimpleTokenizer, b.tokenizer
+    refute_nil b.combiner
+    assert_equal 0, b.pool_names.length
+    assert_equal 0, b.stop_words.length
+  end
+
+  def test_add_stop_words
+    b = Bishop::Bayes.new
+    sw = %w{ Alpha bEta gammA }
+    assert_equal 0, b.stop_words.length
+    b.add_stop_words( sw )
+    assert_equal 3, b.stop_words.length
+    assert_equal sw.map {|s| s.downcase }, b.stop_words
+  end  
+  
+  def test_duplicate_stop_words
+    b = Bishop::Bayes.new
+    sw = %w{ Alpha bEta gammA delta epsilon alpha betA omega }
+    sw2 = sw.map { |s| s.downcase }.uniq.sort
+    assert_equal 0, b.stop_words.length
+    b.add_stop_words( sw )
+    assert_equal sw2.length, b.stop_words.length
+    assert_equal sw2, b.stop_words.sort
+  end  
+  
+  def test_default_stop_words
+    b = Bishop::Bayes.new
+    assert_equal 0, b.stop_words.length
+    b.load_default_stop_words
+    refute_equal 0, b.stop_words.length
+  end
+  
+  def test_new_pool
+    b = Bishop::Bayes.new
+    p = b.new_pool('testing')
+    refute_nil b.pool('testing')
+    assert_equal b.pool('testing'),p
+
+    b.remove_pool('testing')
+    assert_nil b.pool('testing')
+  end
+  
+  def test_rename_pool
+    b = Bishop::Bayes.new
+    p = b.new_pool('testing')
+    refute_nil b.pool('testing')
+    b.rename_pool('testing','gnitset')
+    assert_nil b.pool('testing')
+    refute_nil b.pool('gnitset')
+  end
+  
+  def test_pool_names
+    b = Bishop::Bayes.new
+    names1 = %w{ gamma alpha beta}
+    names1.each { |n| b.new_pool(n) }
+    assert_equal names1.sort, b.pool_names
+  end
+  
+  def test_train_simple
+    b = Bishop::Bayes.new
+            
+    b.load_default_stop_words
+    
+    b.train('lincoln', LINCOLN1)
+    b.train('lincoln', LINCOLN2)
+    b.train('lincoln', LINCOLN3)
+    
+    b.train('jabber', JABBER1)
+    b.train('jabber', JABBER2)
+    b.train('jabber', JABBER3)
+    
+    guess_lincoln = b.guess(LINCOLN4)
+    
+    assert_kind_of Hash, guess_lincoln
+    
+    guess_jabber = b.guess(JABBER4)
+    
+    guess_romeo = b.guess(ROMEO)
+    
+    assert guess_lincoln.has_key?('lincoln')
+    assert guess_jabber.has_key?('jabber')
+    refute guess_romeo.has_key?('lincoln')
+    refute guess_romeo.has_key?('jabber')
+
+    assert guess_lincoln['lincoln'] > 0.9
+    assert guess_jabber['jabber'] > 0.9
+  end
+  
+  def test_train_array
+    b = Bishop::Bayes.new
+    t = Bishop::SimpleTokenizer.new
+  
+    b.train('a', t.tokenize(LINCOLN1))
+    b.train('a', t.tokenize(LINCOLN2))
+    b.train('a', t.tokenize(LINCOLN3))
+
+    b.train('b', LINCOLN1)
+    b.train('b', LINCOLN2)
+    b.train('b', LINCOLN3)
+  
+    assert_equal b.pool('a').data, b.pool('b').data
+  end
+ 
+  def test_pool_merge
+    b = Bishop::Bayes.new
+            
+    b.load_default_stop_words
+    
+    b.train('lincoln', LINCOLN1)
+    b.train('lincoln', LINCOLN2)
+    b.train('lincoln', LINCOLN3)
+    
+    b.train('jabber', JABBER1)
+    b.train('jabber', JABBER2)
+    b.train('jabber', JABBER3)
+    
+    guess = b.guess(LINCOLN4)
+
+    assert guess.has_key?('lincoln')
+    refute guess.has_key?('jabber')
+
+    b.merge_pools('jabber','lincoln')
+    
+    guess = b.guess(LINCOLN4)
+
+    assert guess.has_key?('jabber')
+    assert guess.has_key?('lincoln')
+
+    
+  end
+ 
+  def test_to_json
+    b = Bishop::Bayes.new
+
+            
+    b.load_default_stop_words
+    
+    b.train('lincoln', LINCOLN1)
+    b.train('lincoln', LINCOLN2)
+    b.train('lincoln', LINCOLN3)
+    
+    b.train('jabber', JABBER1)
+    b.train('jabber', JABBER2)
+    b.train('jabber', JABBER3)
+    
+    b.train('romeo',ROMEO)
+    
+    j = JSON.parse(b.to_json)
+    
+    assert j.has_key?('stop_words')
+    assert j.has_key?('pools')
+    train_counts = { 'lincoln' => 3, 'jabber' => 3, 'romeo' => 1}
+    ['lincoln','jabber','romeo'].each do |p|
+      assert j['pools'].has_key?(p)
+      assert train_counts[p], j['pools'][p]['train_count']
+      assert_equal j['pools'][p]['token_count'],j['pools'][p]['data'].inject(0) { |sum,n| sum + n[1] }
+    end
+  end
+  
+  
+end
\ No newline at end of file
diff --git a/test/test_bayes_pool.rb b/test/test_bayes_pool.rb
new file mode 100644
index 0000000..0a0a17c
--- /dev/null
+++ b/test/test_bayes_pool.rb
@@ -0,0 +1,67 @@
+require 'rubygems'
+require 'bundler'
+require 'minitest'
+require 'minitest/autorun'
+Bundler.require(:default, :test)
+
+require_relative '../lib/bayes/bishop'
+
+class TestBayesPool < Minitest::Test
+  parallelize_me!
+
+  LINCOLN1 = "Four score and seven years ago our fathers brought forth on this continent,"+
+    " a new nation, conceived in Liberty, and dedicated to the proposition that all"+
+    " men are created equal."
+    
+  def test_creation_simple
+    bp = Bishop::BayesPool.new
+    refute_nil bp
+    refute_nil bp.data
+    assert_equal 0, bp.token_count
+    assert_equal 0, bp.train_count
+    assert_equal "<BayesPool: 0 tokens>", bp.to_s
+  end
+  
+  def test_merge
+    bp = Bishop::BayesPool.new
+  end
+  
+  def test_indexing
+    b = Bishop::Bayes.new
+            
+    b.train('lincoln', LINCOLN1)
+
+    pool = b.pool('lincoln')
+    
+    pool.tokens.each do |token|
+      assert_equal pool.data[token], pool[token]
+    end
+  end
+  
+  def test_index_set
+    b = Bishop::Bayes.new
+            
+    pool = b.new_pool('simple')
+
+    (1..10).each { |i| pool["token#{i}"] = i}
+
+    (1..10).each do |i|
+      assert_equal i, pool["token#{i}"]
+    end
+  end
+  
+  def test_enumerable
+    b = Bishop::Bayes.new
+            
+    b.train('lincoln', LINCOLN1)
+    
+    pool = b.pool('lincoln')
+    
+    pool.each do |k,v|
+      assert_equal pool.data[k],v
+      assert_equal pool[k],v
+    end
+  end
+  
+  
+end
\ No newline at end of file
diff --git a/test/test_tokenizers.rb b/test/test_tokenizers.rb
new file mode 100644
index 0000000..f07a9fe
--- /dev/null
+++ b/test/test_tokenizers.rb
@@ -0,0 +1,33 @@
+require 'rubygems'
+require 'bundler'
+require 'minitest'
+require 'minitest/autorun'
+Bundler.require(:default, :test)
+
+require_relative '../lib/bayes/bishop'
+
+class TestTokenizers < Minitest::Test
+  parallelize_me!
+
+  def test_simple_tokenizer
+    tokenizer = Bishop::SimpleTokenizer.new
+    s1 = '  this " :-) ;.; % $ &*# is a hyPhen-Test to see - what happens --  '
+    r1 = ["this", "is", "a", "hyphen-test", "to", "see", "what", "happens"] 
+    assert_equal r1, tokenizer.tokenize(s1)
+  end
+  
+  def test_simple_tokenizer_stop_words
+    tokenizer = Bishop::SimpleTokenizer.new
+    s1 = '  alpha beta delta gamma omega phi psi tau  '
+    r1 = %w( alpha beta gamma omega psi tau )
+    assert_equal r1, tokenizer.tokenize(s1,%w(delta phi))
+  end
+  
+  def test_stemming_tokenizer
+    tokenizer = Bishop::StemmingTokenizer.new
+    s1 = '  thankfulness liveliness socializer socialism  '
+    r1 = %w( thank liveli social social )
+    tokens = tokenizer.tokenize(s1)
+    assert_equal r1, tokens
+  end
+end
\ No newline at end of file
diff --git a/test/test_yaml.rb b/test/test_yaml.rb
new file mode 100644
index 0000000..8333f84
--- /dev/null
+++ b/test/test_yaml.rb
@@ -0,0 +1,40 @@
+require 'rubygems'
+require 'bundler'
+require 'minitest'
+require 'minitest/autorun'
+Bundler.require(:default, :test)
+
+require_relative '../lib/bayes/bishop'
+
+class TestYaml < Minitest::Test
+  parallelize_me!
+
+  LINCOLN1 = "Four score and seven years ago our fathers brought forth on this continent,"+
+    " a new nation, conceived in Liberty, and dedicated to the proposition that all"+
+    " men are created equal."
+
+    
+  ROMEO = "Two households, both alike in dignity, "+
+        "In fair Verona, where we lay our scene, "+
+        "From ancient grudge break to new mutiny, "
+        
+  def test_yaml
+    b1 = Bishop::Bayes.new
+    b1.add_stop_words(ROMEO.split(/[^\w]+/))
+    b1.train('lincoln',LINCOLN1)
+    b1.save_yaml
+    
+    b2 = Bishop::Bayes.new
+    b2.load_yaml
+    
+    assert_equal b1.stop_words, b2.stop_words
+    
+    b1_pool = b1.pool('lincoln')
+    b2_pool = b2.pool('lincoln')
+    assert_equal b1_pool.train_count, b2_pool.train_count
+    assert_equal b1_pool.token_count, b2_pool.token_count
+    assert_equal b1_pool.data, b2_pool.data
+  end
+
+
+end
\ No newline at end of file