DOC: Add cookbook recipe like R's expand.grid()

Add `expand_grid()` recipe to cookbook

Add note about cookbook recipe to release notes

Revert "Add note about cookbook recipe to release notes"

This reverts commit e431a024c2e688f9917cafb12235ee72ecc3e119.

Remove pandas import, print dataframe in cookbook

Author: onesandzeroes

doc/source/cookbook.rst

@@ -663,3 +663,25 @@ To globally provide aliases for axis names, one can define these 2 functions:
    df2 = DataFrame(randn(3,2),columns=['c1','c2'],index=['i1','i2','i3'])
    df2.sum(axis='myaxis2')
    clear_axis_alias(DataFrame,'columns', 'myaxis2')
+
+Creating Example Data
+---------------------
+
+To create a dataframe from every combination of some given values, like R's ``expand.grid()``
+function, we can create a dict where the keys are column names and the values are lists
+of the data values:
+
+.. ipython:: python
+
+    import itertools
+
+    def expand_grid(data_dict):
+        rows = itertools.product(*data_dict.values())
+        return pd.DataFrame.from_records(rows, columns=data_dict.keys())
+
+    df = expand_grid(
+        {'height': [60, 70],
+         'weight': [100, 140, 180],
+         'sex': ['Male', 'Female']}
+    )
+    df