plyr (1.8.1)

65 users

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).

Maintainer: Hadley Wickham
Author(s): Hadley Wickham <>

License: MIT + file LICENSE

Uses: Rcpp, abind, doMC, foreach, iterators, testthat, itertools
Reverse depends: abctools, AppliedPredictiveModeling, aqp, BatchExperiments, bigml, Biograph, bmk, caret, cda, charlson, ChemoSpec, classify, coefplot, CONOR, CONORData, CPMCGLM, cshapes, decctools, Deducer, demi, discreteRV, dynsurv, EBMAforecast, eeptools, em2, emdbook, epibase, EpiContactTrace, extracat, ez, ezsim, FAOSTAT, favir, fishmove, gcbd, geospt, GGally, ggmap, ggmcmc, ggparallel, gsDesign, HLMdiag, intsvy, ISIPTA, JAGUAR, kobe, Lahman, latticedl, lsmeans, lubridate, MAc, MAd, mcpd, MplusAutomation, multilevelPSA, networkTomography, nytR, Ohmage, OpenRepGrid, pitchRx, pkDACLASS, plotKML, plotSEMM, PMA, PopGenReport, pROC, productplots, ProjectTemplate, psytabs, pxR, rAltmetric, rcbalance, Rcell, RcmdrPlugin.MAc, RcmdrPlugin.MAd, rcqp, RDSTK, rebird, remix, reshape, reshapeGUI, rfisheries, RForcecom, rgeos, rImpactStory, Rmisc, RSA, RSAGA, RSiteCatalyst, SGP, SixSigma, skills, smatr, soilDB, stringr, tabplot, taRifx.geo, TextRegression, timeordered, transnet, treemap, TripleR, useful, wethepeople, wordmatch
Reverse suggests: abd, afex, bayesGDS, bear, data.table, discreteRV, eeptools, gcookbook, ggdendro, ggswissmaps, ggthemes, GSIF, gtable, HistData, installr, Kmisc, knitrBootstrap, Lahman, lme4, metafor, mosaic, planar, plumbr, ProjectTemplate, psd, qdap, rattle, rbefdata, rgeos, SciencePo, soil.spec, sparseHessianFD, TimeProjection, trapezoid, trustOptim, vcdExtra

Released about 1 year ago.

13 previous versions



  4.0/5 (34 votes)


  3.5/5 (22 votes)

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