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reshape2

Flexibly Reshape Data: A Reboot of the Reshape Package

v1.4.5 · Nov 11, 2025 · MIT + file LICENSE

Description

Flexibly restructure and aggregate data using just two functions: melt and 'dcast' (or 'acast').

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CRAN Check Status

13 OK
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Flavor Status
r-devel-linux-x86_64-debian-clang OK
r-devel-linux-x86_64-debian-gcc OK
r-devel-linux-x86_64-fedora-clang OK
r-devel-linux-x86_64-fedora-gcc OK
r-devel-windows-x86_64 OK
r-oldrel-macos-arm64 OK
r-oldrel-macos-x86_64 OK
r-oldrel-windows-x86_64 OK
r-patched-linux-x86_64 OK
r-release-linux-x86_64 OK
r-release-macos-arm64 OK
r-release-macos-x86_64 OK
r-release-windows-x86_64 OK

Check History

OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Apr 22, 2026
ERROR 13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Apr 18, 2026
ERROR r-devel-windows-x86_64

whether package can be installed

Installation failed.
See 'd:/Rcompile/CRANpkg/local/4.6/reshape2.Rcheck/00install.out' for details.
OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Apr 16, 2026
ERROR 13 OK · 0 NOTE · 0 WARNING · 1 ERROR · 0 FAILURE Apr 13, 2026
ERROR r-release-windows-x86_64

whether package can be installed

Installation failed.
See 'd:/Rcompile/CRANpkg/local/4.5/reshape2.Rcheck/00install.out' for details.
OK 14 OK · 0 NOTE · 0 WARNING · 0 ERROR · 0 FAILURE Mar 10, 2026

Reverse Dependencies (802)

imports

ABHgenotypeR ANN2 ASML AgeTopicModels AppliedPredictiveModeling ArvindSt AvInertia BAwiR BBEST BEKKs BIGr BOLDconnectR BTSPAS BayesCTDesign BayesChange BayesPET BayesPostEst BayesianReasoning BinarybalancedCut BioIndex CAinterprTools CJIVE CMapViz CNVScope CSTools CalibratR ChemoSpec ClassifyITS Cleanet ClimClass ClussCluster ClustAssess CoDaLoMic CoDiNA CommKern CompositeReliability ConsensusOPLS CoreMicrobiomeR Cubist CytOpT CytoProfile DBHC DDESONN DImodelsMulti DVHmetrics DataExplorer DataVisualizations DescribeDisplay DiscreteDLM DrugSim2DR EEM EFA.MRFA EZFragility EcoEnsemble EloOptimized EpiDynamics EpiEstim EstimDiagnostics EvaluateCore EvolutionaryGames Evomorph FARS FRK FinCal ForeCA FreqProf GCCfactor GCalignR GEInter GISSB GMSimpute GPflexViz GREENeR GeRnika GenHMM1d GowerSom HH HLMdiag HMDA HVT HaDeX HetSeq HuraultMisc IATscores IMTest IPV IRTM ITNr InterfaceqPCR Kmedians L0Learn LCPA LOMAR LSX LambertW LatentBMA LeadSense LipidomicsR LongDat MBMethPred MBNMAdose MBNMAtime MCTrend MEAanalysis MF.beta4 MIGEE MIMER MLFS MLZ MRFcov MRIreduce MSclassifR MantaID MarketMatching MetaNet MicrobTiSDA MitoHEAR MixSIAR NMADTA NMAoutlier NMF NPBayesImputeCat NPflow NetworkComparisonTest NetworkComparr NeuralNetTools NeuralSens OpenRepGrid.ic OptCirClust OralOpioids PANACEA PAutilities PCADSC PSAboot PTXQC PlotPrjNetworks PolicyPortfolios PopComm PopGenHelpR PopGenReport ProbSVMs R3port RARfreq RDS REN RGMM RNeXML RSSL RStoolbox RaCE.NMA RareComb ReSurv RelimpPCR ReporterScore Rirt RobKF Rprofet SEERaBomb SISIR SLEMI SMASH SNPkit SQMtools SSDM SSplots SUMMER SVMMaj SWMPr SensMap SensoMineR SepTest SeuratExplorer ShinyQuickStarter SixSigma SleepCycles SlideCNA SoundShape SoyNAM SpaCCI StMoMo Superpower TBA TCGAretriever TCIU TSstudio TcGSA TopDom TopKSignal TripleR TropFishR TwoTimeScales UPG UVdose Umatrix VDAP WINS WaverideR WebAnalytics WordListsAnalytics ZetaSuite aMNLFA abe actel adace adegenet afex aiRly aifeducation allMT anabel animint2 archeoViz aslib asremlPlus assignPOP atable autoGO baker bartXViz bayefdr bayesPop bayesdfa bayesplot bayesvl betaStability bikm1 bioclim biomod2 birdscanR blrm bnmonitor boral bsocialv2 bspcov burnr cancerGI caret cartograflow cash cassandRa causalPAF cellWise chem16S childsds chillR chooseGCM clhs climatehealth clmplus clustMD clusterMI cmahalanobis coefplot compareMCMCs compositeReliabilityInNestedDesigns conText connected conos corona cosimmr cplm crctStepdown critpath csa csodata cuRe dartR dartR.base dartR.captive dartR.sim data360r dataprep dbhydroR dbmss dendroNetwork dendroTools denovolyzeR desplot detectRUNS detectXOR dgpsi diffEnrich dlim do dpGMM drimmR drpop dsBase dsa dtwclust duet dynRB dynr dynwrap eSIR easynem eat eatRep ebvcube econullnetr ecr edina elaborator emdi enpls ensembleTax entropart epicR epinetr esviz ethnobotanyR etrm evolqg expDB exreport extraSuperpower exvatools ez fSRM fabisearch fastTopics fastml fcm fdaPOIFD fdapaceShiny fect finlabR finna fitbitViz fmriqa footBayes foqat forestSAS frailtySurv freesurfer funModeling fuzzylink gWQS gaQSAR gdm geeLite genBaRcode geocmeans gfoRmulaICE ggaligner ggcorrplot gge ggenealogy ggiraphExtra ggrisk ggscidca ghypernet glmmPen glmmfields grabsampling grandR grapesAgri1 graphPAF grapherator gridsampler gspcr gstar gumboot handwriter handwriterRF hdflex heatmaply henna hicream hlaR hoboR hybridModels hydraulics hydroToolkit hydroroute hydrotoolbox hyfo iNEXT iNEXT.3D iNEXT.4steps icardaFIGSr icpack ideanet idiffomix idopNetwork immunarch imputeR imputeTestbench inDAGO inTextSummaryTable intRinsic intradayModel iprior irtQ isobxr ivmodel jollofR jtdm kaos kehra kernelPhil kerntools kgraph lans2r latbias lavaSearch2 lddmm lfproQC likert lipidomeR lolog longreadvqs lsl mFD macrosyntR mandelbrot manhplot mapStats mappoly marmap matricks matrixdist mbsts mcb mcvis mdpeer meconetcomp metadeconfoundR metaprotr mfpp microeco mipplot mispitools mizer mlergm moderate.mediation modnets morse mortAAR motifr mplot mpower mrct mrfDepth mstclustering mudfold multiSA multibreakeR multifear multivar musclesyneRgies mvdalab mvnimpute mxfda nandb ncappc nestedpp netcom netgsa networktools networktree nlpembeds nonmem2R nonsmooth oCELLoc oaxaca obAnalytics onemap opImputation optiSel ordinalLBM otuSummary outreg pRF pacheck panelvar patientProfilesVis patterncausality pcFactorStan pctax pcutils petersenlab phase1PRMD phylter pingers pixiedust plot4fun plotthis plsgenomics polypoly polyqtlR pompom pould powerbydesign predict3d predictMe prepdat primerTree promor promotionImpact pscore ptycho puzzle pvars qape qdap qgraph quantkriging rACMEMEEV rADA rKOMICS rYoutheria randomForestExplainer randomizeR rapportools rbcc rbi rbi.helpers rdiversity reddPrec refund.shiny remaCor rgm riskutility riverconn rlfsm rmcfs rnaCrosslinkOO rnmamod robCompositions robin romic rrda rrobot rtpcr rusk rwty sValues saeTrafo salmonMSE sampcompR santaR sbm scCATCH scGate scITD scTenifoldKnk scistreer scitb scorecardModelUtils scpi sctransform segclust2d sgdGMF sharpshootR shinyKGode shinystan signed.backbones siland simmr simrel singleCellHaystack sitepickR snplinkage sparsevar spatialAtomizeR speaq specieschrom spectacles spectralR stability structSSI superb survSens svars sysid tashu tcgaViz tcplfit2 telraamStats testarguments testcorr tetraclasse theftdlc thisplot tldr topolow transforEmotion treeDA treediff tsentiment tsiR tvm twig updog vacalibration vannstats viewpoly visa viscomp vivainsights vizClust wTO weaana welo wevid widyr wpa wppExplorer wql wqspt yorkr zebu

suggests

ALUES ARPobservation AdaptGauss BioMonTools CGGP CimpleG CohortContrast DanielBiostatistics10th DeclareDesign DirectEffects DrData EMJMCMC ENMTools FCPS GeneralizedUmatrix GeneralizedUmatrixGPU IOBR IceSat2R IncDTW Information LMMstar Lahman MGLM MOEADr MSEtool MTLR MTPS Markovchart MiscMetabar MortalityTables NitrogenUptake2016 OpenMx PDQutils ParamHelpers Perc ProjectionBasedClustering QsRutils RDML RGENERATEPREC ROKET RaJIVE ReliabilityTheory Rnvd3 SAMtool SDMtune ShinyWizard SightabilityModel SmCCNet SongEvo Tmisc admix agridat aldvmm alluvial analyzer baseballr bmlm bodenmiller bootCT bridgedist camtrapR causaldrf classmap clayringsmiletus clustNet codyn colorBlindness complexlm contsurvplot countfitteR csdata cytofan dartR.popgen datplot directlabels dominanceanalysis ecostats ecotraj epca explainer fastei fddm fitHeavyTail fitODBOD frequencyConnectedness funData funtimes genekitr germinationmetrics ggforce ggversa ghcm glmmTMB hdf5r heplots heuristica hilbertSimilarity iheatmapr irtrees kergp knitrBootstrap lda metR metafolio mgc microplot missoNet mlrMBO mosaicData multiscape mutSignatures nLTT nc neurobase nser opticskxi outstandR pals pdSpecEst penppml phylosamp polymapR predmicror primer prioriactions productplots psd qad r4ss rAmCharts4 ragtop rankrate rayshader refund remotePARTS rfordummies rmoo robustbase robustlmm rpf rrcov3way rrscale rtForecastEval rtop scanstatistics sdmpredictors sensitivity simdata socialmixr spFFBS spNetwork sparklyr sparsesurv spatialwarnings ssdtools stepgbm steprf sumup survout swag tableone tci tcpl tictactoe tidytext tmfast treespace tstools tukeytrend vcfR vkR webSDM wxgenR

Dependency Network

Dependencies Reverse dependencies plyr Rcpp stringr AurieLSHGaussian DIMORA MicroNiche SKFCPD ScottKnottESD TriMatch clickstream eirm gapmap ifaTools interlineaR morph oceanmap pxR tmpm +787 more reverse deps reshape2

Version History

12 tracked
new 1.4.5 Mar 10, 2026
updated 1.4.5 ← 1.4.4 diff Nov 11, 2025
updated 1.4.4 ← 1.4.3 diff Apr 8, 2020
updated 1.4.3 ← 1.4.2 diff Dec 10, 2017
updated 1.4.2 ← 1.4.1 diff Oct 21, 2016
updated 1.4.1 ← 1.4 diff Dec 5, 2014
updated 1.4 ← 1.2.2 diff Apr 22, 2014
updated 1.2.2 ← 1.2.1 diff Dec 3, 2012
updated 1.2.1 ← 1.2 diff Jan 9, 2012
updated 1.2 ← 1.1 diff Nov 17, 2011
updated 1.1 ← 1.0 diff Jan 3, 2011
new 1.0 Sep 9, 2010