references.bib

@Manual{R-data.table,
  title = {data.table: Extension of data.frame},
  author = {M Dowle and T Short and S Lianoglou and A Srinivasan with contributions from R Saporta and E Antonyan},
  year = {2014},
  note = {R package version 1.9.4},
  url = {http://CRAN.R-project.org/package=data.table},
}
@Manual{R-ggplot2,
  title = {ggplot2: An Implementation of the Grammar of Graphics},
  author = {Hadley Wickham and Winston Chang},
  year = {2015},
  note = {R package version 1.0.1},
  url = {http://CRAN.R-project.org/package=ggplot2},
}
@Manual{R-knitr,
  title = {knitr: A General-Purpose Package for Dynamic Report Generation in R},
  author = {Yihui Xie},
  year = {2015},
  note = {R package version 1.11},
  url = {http://CRAN.R-project.org/package=knitr},
}
@Manual{R-pls,
  title = {pls: Partial Least Squares and Principal Component Regression},
  author = {Bjørn-Helge Mevik and Ron Wehrens and Kristian Hovde Liland},
  year = {2015},
  note = {R package version 2.5-0},
  url = {http://CRAN.R-project.org/package=pls},
}
@Manual{R-plyr,
  title = {plyr: Tools for Splitting, Applying and Combining Data},
  author = {Hadley Wickham},
  year = {2015},
  note = {R package version 1.8.3},
  url = {http://CRAN.R-project.org/package=plyr},
}
@Manual{R-readr,
  title = {readr: Read Tabular Data},
  author = {Hadley Wickham and Romain Francois},
  year = {2015},
  note = {R package version 0.2.2},
  url = {http://CRAN.R-project.org/package=readr},
}
@Manual{R-reshape2,
  title = {reshape2: Flexibly Reshape Data: A Reboot of the Reshape Package.},
  author = {Hadley Wickham},
  year = {2014},
  note = {R package version 1.4.1},
  url = {http://CRAN.R-project.org/package=reshape2},
}