Tools for Splitting, Applying and Combining Data
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
    piece 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 'Becton Dickinson'.
person("Hadley", "Wickham", , "hadley@rstudio.com", c("aut", "cre"))
abind, testthat, tcltk, foreach, doParallel, itertools,
iterators, covr