plyr (1.1)
Tools for splitting, applying and combining data.
http://had.co.nz/plyr
http://cran.r-project.org/web/packages/plyr
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.
Maintainer:
Hadley Wickham
Author(s): Hadley Wickham <h.wickham@gmail.com>
License: MIT
Uses: iterators, itertools, RUnit, abind, testthat
Reverse depends: aqp, charlson, ez, favir, latticedl, lubridate, MAc, MAd, MplusAutomation, nytR, PMA, pROC, ProjectTemplate, RcmdrPlugin.MAc, RcmdrPlugin.MAd, remix, reshape, stringr, TripleR
Reverse suggests: HistData, vcdExtra
Released about 1 month ago.
3 previous versions
- plyr_1.0.3. Released about 1 month ago.
- plyr_0.1.9.
- plyr_0.1.8.
Ratings
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Reviews
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incredibly useful, but not very fast
Plyr is an incredibly useful package, greatly simplifing the split-compute-combine process on data frames and other structure. However, due in part…
harlan.harris gave plyr (0.1.9) a 4. Read the full review.
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all that ones need to manipulata data
like sql it provides constructs to manipulate data functionally and using intuitive and flexible plyr’s
great thought has been put into it, as…
eamani gave plyr (0.1.9) a 5. Read the full review.
Related packages: … (20 best matches, based on common tags.)
Search for plyr on google, google scholar, r-help, r-devel.
Visit plyr on R Graphical Manual.
