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'.

Documentation

Manual: plyr.pdf
Vignette: None available.

Maintainer: Hadley Wickham <hadley at rstudio.com>

Author(s): Hadley Wickham*

Install package and any missing dependencies by running this line in your R console:

install.packages("plyr")

Depends R (>= 3.1.0)
Imports Rcpp(>=0.11.0)
Suggests abind, testthat, tcltk, foreach, doParallel, itertools, iterators, covr
Enhances
Linking to Rcpp
Reverse
depends
abctools, acs, bcpa, bmk, boottol, BSGS, ClustGeo, coprimary, CPMCGLM, cshapes, DataLoader, dexter, DoTC, EBMAforecast, EIAdata, EurosarcBayes, evolqg, Fgmutils, fishmove, gpmap, HRM, imager, ivlewbel, JAGUAR, MScombine, NAPPA, oec, ONETr, PdPDB, plotSEMM, PMA, pxR, rcbalance, rcbsubset, rcqp, RDSTK, remix, reshapeGUI, RGBM, Rmisc, RSAGA, RStorm, rtip, sclero, selfea, sinaplot, smatr, SSrat, StagedChoiceSplineMix, StratifiedBalancing, surveybootstrap, timeordered, unitedR, weightTAPSPACK, wordmatch, zTree
Reverse
imports
acc, ACDm, adapr, AFM, ALA4R, aLFQ, anomalyDetection, AntWeb, aop, AppliedPredictiveModeling, APSIM, aqp, ARTool, aslib, asVPC, aws.alexa, BatchExperiments, bayesboot, BayesFM, bayesPop, bdvis, BEACH, bea.R, benchmark, BEQI2, betalink, bib2df, bigml, Biograph, blkbox, BNPMIXcluster, bold, bpa, brainGraph, broom, BTSPAS, burnr, caret, caretEnsemble, CDM, ChemoSpec, classifly, classify, clhs, clickstream, climwin, clusterfly, clusternomics, clustrd, coefplot, comf, CONDOP, confidence, contoureR, CopulaDTA, cowplot, CrossScreening, crtests, CTM, ctsem, d3Network, dataone, dcmr, ddpcr, deBInfer, Deducer, demi, DescribeDisplay, discreteRV, dotwhisker, dplR, drake, drLumi, dropR, dtwSat, dynr, dynsurv, ecoengine, eiCompare, elhmc, emdbook, enigma, Epi, episensr, erp.easy, esaddle, europepmc, evoper, exifr, expandFunctions, exprso, extracat, eyelinker, ez, ezsim, FAOSTAT, fbRads, fdq, fecR, finch, fitcoach, flippant, forestinventory, freqweights, FRK, FSA, fSRM, funcy, FuzzyR, gcbd, GDELTtools, gems, gemtc, geospt, GERGM, getCRUCLdata, gfcanalysis, GFD, GGally, ggenealogy, ggiraph, ggiraphExtra, gglogo, ggloop, ggmap, ggparallel, ggplot2, ggpmisc, ggpubr, ggQC, ggraph, ggstance, ggtern, gProfileR, granovaGG, gridsampler, groupdata2, GrpString, gsDesign, GSIF, GSODR, harvestr, HighDimOut, HiveR, HLMdiag, HTSSIP, HydeNet, hyfo, IGM.MEA, IMFData, inctools, inegiR, Information, IntClust, InterpretMSSpectrum, intsvy, IRATER, IsingSampler, ITGM, jocre, JWileymisc, kamila, Kernelheaping, kimisc, kobe, kutils, LakeMetabolizer, lazysql, learningr, lfda, lfl, lfstat, likert, linear.tools, llama, lllcrc, lmeresampler, lmerTest, loopr, lpbrim, lsbclust, lsmeans, machQA, mafs, MANOVA.RM, matchMulti, MatrixLDA, MCPAN, medicalrisk, meifly, MetaboQC, MetaComp, metafolio, metagen, metaviz, meteo, MFPCA, MiRAnorm, mixOmics, mizer, mlVAR, mnis, Momocs, mplot, MplusAutomation, mpoly, MRMR, msltrend, mtconnectR, mudata, multilevelPSA, mvdalab, MVN, nasadata, nat, nat.nblast, neotoma, networkreporting, networkTomography, NFP, nhanesA, nima, npIntFactRep, npsm, nullabor, oai, okmesonet, OpasnetUtils, openair, OpenRepGrid, opentraj, optiRum, optiSel, OutbreakTools, paco, paleobioDB, paleofire, parboost, pathological, patPRO, pcrsim, pdp, pems.utils, peptider, photobiology, PhylogeneticEM, pirate, pitchRx, PKNCA, planar, Plasmidprofiler, platetools, plotKML, plotluck, plotROC, plusser, pogit, pointRes, poliscidata, PopGenReport, powerbydesign, pqantimalarials, predictmeans, PredPsych, primerTree, pROC, processcontrol, productplots, profr, proteomics, psytabs, PTXQC, ptycho, pxweb, qgraph, radmixture, rAltmetric, RAM, rapportools, raptr, rbhl, RbioRXN, rbison, rchess, RchivalTag, rclinicaltrials, RcmdrPlugin.KMggplot2, rcompanion, RCriteo, rcrossref, rcure, readbulk, RefManageR, REndo, repijson, repmis, reshape, reshape2, RevEcoR, rfigshare, RForcecom, RGA, ridigbio, rinat, rLakeAnalyzer, rLiDAR, RmarineHeatWaves, RNewsflow, RNeXML, rnpn, rnrfa, robustvarComp, rodham, rollply, rplos, rprime, RSA, rscopus, rsdmx, RSentiment, RSiteCatalyst, rslp, rsnps, RSocrata, rSPACE, RSPS, rsunlight, rtematres, rtide, rusda, rWBclimate, rwty, rYoutheria, s2dverification, satellite, scales, scanstatistics, SEERaBomb, segmag, semPlot, SensMixed, SensusR, SeqFeatR, sequoia, sharpshootR, SimDesign, simPop, simr, simTool, sirt, skm, Smisc, snht, SNSequate, SocialMediaLab, soilDB, solarius, solr, solrium, spanr, spduration, spef, spiders, spongecake, srd, ss3sim, Stack, statcheck, stationaRy, StatRank, stormwindmodel, strvalidator, superheat, surveydata, synthpop, TAM, taRifx, taxize, TDPanalysis, toaster, TR8, translateSPSS2R, treeclim, treecm, treeman, TripleR, TSMining, tuber, tweet2r, unmarked, UpSetR, uptimeRobot, useful, userfriendlyscience, ustyc, uwIntroStats, vardpoor, vdmR, vetools, virustotal, vortexR, vqtl, Wats, WCE, weatherData, WikiSocio, worldmet, wppExplorer, WRS2, XML2R, ykmeans, zebu, zoocat, zoon
Reverse
suggests
abd, afex, ARPobservation, bayesGDS, cda, cpca, darch, data.table, dendextend, dostats, eechidna, eeptools, enrichwith, flacco, gcookbook, ggswissmaps, ggthemes, heuristica, hillmakeR, HistData, homeR, hydrostats, ifaTools, installr, jsonlite, Kmisc, knitrBootstrap, latex2exp, LSAmitR, lulcc, mcglm, MGLM, mvnfast, mvtboost, NlsyLinks, nLTT, NNTbiomarker, NPC, ParamHelpers, pedometrics, plumbr, pomp, ProjectTemplate, psd, ptstem, QFASA, rangemodelR, rattle, rbefdata, rsvd, scdhlm, shadow, soil.spec, sparseMVN, textreg, TH.data, TimeProjection, traits, trapezoid, TropFishR, vcdExtra, vkR, wingui
Reverse
enhances
Reverse
linking to

Package plyr
Materials
URL http://had.co.nz/plyr https://github.com/hadley/plyr
Task Views
Version 1.8.4
Published 2016-06-08
License MIT + file LICENSE
BugReports https://github.com/hadley/plyr/issues
SystemRequirements
NeedsCompilation yes
Citation
CRAN checks plyr check results
Package source plyr_1.8.4.tar.gz