Tools for splitting, applying and combining data plyr is a set of tools that solves a common set of problems: you need to break a big problem down into manageable pieces, operate on each pieces and then put all the pieces back together. For example, you might want to fit a model to each spatial location or time point in your study, summarise data by panels or collapse high-dimensional arrays to simpler summary statistics. The development of plyr has been generously supported by BD (Becton Dickinson). Software Depends: R (>= 2.11.0) Suggests: abind, testthat (>= 0.2), tcltk, foreach, itertools, iterators Hadley Wickham <h.wickham@gmail.com> Hadley Wickham <h.wickham@gmail.com> MIT 2012-01-08 application/tgz http://CRAN.R-project.org/package=plyr