plyr: 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).

Version: 1.8
Depends: R (≥ 2.11.0)
Suggests: abind, testthat (≥ 0.2), tcltk, foreach, doMC, itertools, iterators
Published: 2012-12-06
Author: Hadley Wickham
Maintainer: Hadley Wickham <h.wickham at gmail.com>
License: MIT
URL: http://had.co.nz/plyr
NeedsCompilation: yes
Citation: plyr citation info
CRAN checks: plyr results

Downloads:

Package source: plyr_1.8.tar.gz
MacOS X binary: plyr_1.8.tgz
Windows binary: plyr_1.8.zip
Reference manual: plyr.pdf
News/ChangeLog:NEWS
Old sources: plyr archive

Reverse dependencies:

Reverse depends: abctools, AppliedPredictiveModeling, bigml, Biograph, bmk, caret, cda, charlson, classify, CONOR, CONORData, CPMCGLM, cshapes, Deducer, dynsurv, EBMAforecast, emdbook, epibase, EpiContactTrace, extracat, ez, ezsim, FAOSTAT, fishmove, gcbd, geospt, ggmcmc, ggparallel, intsvy, ISIPTA, kobe, MplusAutomation, multilevelPSA, networkTomography, OpenRepGrid, pitchRx, PMA, PopGenReport, pROC, productplots, psytabs, rAltmetric, rapport, Rcell, rcqp, RDSTK, rebird, remix, reshape, reshapeGUI, rfisheries, rImpactStory, RSA, RSAGA, RSiteCatalyst, SixSigma, taRifx, taRifx.geo, TextRegression, timeordered, transnet, TripleR, wethepeople
Reverse imports: aqp, BatchExperiments, BatchJobs, biom, ChemoSpec, clhs, coefplot, DataCombine, dostats, gazetools, gems, GGally, ggmap, ggplot2, ggsubplot, GOsummaries, govdat, gProfileR, granovaGG, GSIF, harvestr, HiveR, HLMdiag, hof, lint, llama, lubridate, meifly, metagen, MissingDataGUI, mpoly, nullabor, okmesonet, openair, plotKML, qgraph, RcmdrPlugin.KMggplot2, rdryad, repmis, reshape2, rfigshare, rgbif, rImpactStory, ropensnp, rplos, rspear, rvertnet, RXKCD, scales, semPlot, SGP, soilDB, sss, Stack, surveydata, taxize, transmission, treecm, useful, yhatr
Reverse suggests: abd, bams, bear, data.table, eeptools, gcookbook, ggthemes, GSIF, gtable, HistData, Lahman, NlsyLinks, opencpu.demo, planar, plumbr, ProjectTemplate, psd, qdap, rbefdata, SciencePo, TimeProjection, trapezoid, vcdExtra