通过以下这些package，R能够实现各种统计功能，并且最新的统计方法的进展都会尽快加入到package中
现有的统计包：
ctestAcollectionofClassicalTESTs,includingtheAnsari-Bradley,Bartlett,chi-squared,Fisher,Kruskal-Wallis,Kolmogorov-Smirnov,t,andWilcoxontests.
edaExploratoryDataAnalysis.Currentlyonlycontainsfunctionsforrobustlinefitting,andmedianpolishandsmoothing.
lqsResistantregressionandcovarianceestimation.
methodsFormallydefinedmethodsandclassesforRobjects,plusotherprogrammingtools,asdescribedintheGreenBook.
modregMODernREGression:smoothingandlocalmethods.
mvaMultiVariateAnalysis.Currentlycontainscodeforprincipalcomponents,canonicalcorrelations,metricmultidimensionalscaling,factoranalysis,andhierarchicalandk-meansclustering.
nlsNonlinearregressionroutines.
splinesRegressionsplinefunctionsandclasses.
stepfunCodefordealingwithSTEPFUNctions,includingempiricalcumulativedistributionfunctions.
tcltkInterfaceandlanguagebindingstoTcl/TkGUIelements.
tsTimeSeries.ThefollowingpackagesareavailablefromtheCRANsrc/contribarea.
AnalyzeFMRIFunctionsforI/O,visualisationandanalysisoffunctionalMagneticResonanceImaging(fMRI)datasetsstoredintheANALYZEformat.
CoCoAnConstrainedCorrespondenceAnalysis.
Devore5DatasetsandsampleanalysesfromProbabilityandStatisticsforEngineeringandtheSciences(5thed)byJayL.Devore,2000,Duxbury.
GLMMGibbsGeneralisedLinearMixedModelsbyGibbssampling.
GeneSOMClusteringgenesusingSelf-OrganizingMaps(SOMs).
KernSmoothFunctionsforkernelsmoothing(anddensityestimation)correspondingtothebookKernelSmoothingbyM.P.WandandM.C.Jones,1995.
MASSFunctionsanddatasetsfromthemainpackageofVenablesandRipley,ModernAppliedStatisticswithS-PLUS.ContainedintheVRbundle.
MatrixAMatrixpackage.
NISTnlsAsetoftestnonlinearleastsquaresexamplesfromNIST,theU.S.NationalInstituteforStandardsandTechnology.
OarrayArrayswitharbitraryoffsets.
PHYLOGRManipulationandanalysisofphylogeneticallysimulateddatasets(asobtainedfromPDSIMULinpackagePDAP)andphylogenetically-basedanalysesusingGLS.
PTAkAmultiwaymethodtodecomposeatensor(array)ofanyorder,asageneralisationofSVDalsosupportingnon-identitymetricsandpenalisations.Alsoincludessomeothermultiwaymethods.
RArcInfoFunctionstoimportArc/InfoV7.xcoveragesanddata.
RandomFieldsCreatingrandomfieldsusingvariousmethods.
RMySQLAninterfacebetweenRandtheMySQLdatabasesystem.
RODBCAnODBCdatabaseinterface.
RPgSQLProvidesmethodsforaccessingdatastoredinPostgreSQLtables.
RmSQLAninterfacebetweenRandthemSQLdatabasesystem.
RstreamsBinaryfilestreamsupportfunctions.
RwaveAnenvironmentforthetime-frequencyanalysisof1-Dsignals(andespeciallyforthewaveletandGabortransformsofnoisysignals),basedonthebookPracticalTime-FrequencyAnalysis:GaborandWaveletTransformswithanImplementationinSbyReneCarmona,WenL.HwangandBrunoTorresani,1998,AcademicPress.
SASmixedDatasetsandsamplelinearmixedeffectsanalysescorrespondingtotheexamplesinSASSystemforMixedModelsbyR.C.Littell,G.A.Milliken,W.W.StroupandR.D.Wolfinger,1996,SASInstitute.
SuppDistsTendistributionssupplementingthosebuiltintoR(InverseGauss,Kruskal-Wallis,Kendall'sTau,Friedman'schisquared,Spearman'srho,maximumFratio,thePearsonproductmomentcorrelationcoefficiant,Johnsondistributions,normalscoresandgeneralizedhypergeometricdistributions).
XMLFacilitiesforreadingXMLdocumentsandDTDs.
acepackACE(AlternatingConditionalExpectations)andAVAS(AdditivityandVArianceStabilizationforregression)methodsforselectingregressiontransformations.
adaptAdaptivequadratureinupto20dimensions.
akimaLinearorcubicsplineinterpolationforirregularlygriddeddata.
ashDavidScott'sASHroutinesfor1Dand2Ddensityestimation.
bindataGenerationofcorrelatedartificialbinarydata.
blightyFunctionfordrawingthecoastlineoftheUnitedKingdom.
bootFunctionsanddatasetsforbootstrappingfromthebookBootstrapMethodsandTheirApplicationsbyA.C.DavisonandD.V.Hinkley,1997,CambridgeUniversityPress.
bootstrapSoftware(bootstrap,cross-validation,jackknife),dataanderrataforthebookAnIntroductiontotheBootstrapbyB.EfronandR.Tibshirani,1993,ChapmanandHall.
bqtlQTLmappingtoolkitforinbredcrossesandrecombinantinbredlines.IncludesmaximumlikelihoodandBayesiantools.
carCompaniontoAppliedRegression,containingfunctionsforappliedregession,linearmodels,andgeneralizedlinearmodels,withanemphasisonregressiondiagnostics,particularlygraphicaldiagnosticmethods.
cclustConvexclusteringmethods,includingk-meansalgorithm,on-lineupdatealgorithm(HardCompetitiveLearning)andNeuralGasalgorithm(SoftCompetitiveLearning)andcalculationofseveralindexesforfindingthenumberofclustersinadataset.
cfaAnalysisofconfigurationfrequencies.
chronApackageforworkingwithchronologicalobjects(timesanddates).
classFunctionsforclassification(k-nearestneighborandLVQ).ContainedintheVRbundle.
clusterFunctionsforclusteranalysis.
cmprskEstimation,testingandregressionmodelingofsubdistributionfunctionsincompetingrisks.
codaOutputanalysisanddiagnosticsforMarkovChainMonteCarlo(MCMC)simulations.
conf.designAseriesofsimpletoolsforconstructingandmanipulatingconfoundedandfractionalfactorialdesigns.
cramerRoutineforthemultivariatenonparametricCramertest.
dateFunctionsfordealingwithdates.Themostusefulofthemacceptsavectorofinputdatesinanyoftheforms8/30/53,30Aug53,30August1953,...,August3053,oranymixtureofthese.
diamondsFunctionsforillustratingaperture-4diamondpartitionsintheplane,oronthesurfaceofanoctahedronoricosahedron,foruseasanalysisorsamplinggrids.
dseDynamicSystemEstimation,amultivariatetimeseriespackage.Containsdse1(DSEkernelplusARMAandstatespacemodels),dse2(DSEextensions),syskern(functionsforwritingcodethatisoperatingsystemandR/Sindependent),andtframe(functionsforwritingcodethatisindependentoftherepresentationoftime).
e1071MiscellaneousfunctionsusedattheDepartmentofStatisticsatTUWien(E1071),includingmoments,short-timeFouriertransforms,IndependentComponentAnalysis,LatentClassAnalysis,readingandwritingofimagesinportableanymapformat,simulationofaWienerprocess,supportvectormachines,andfuzzyclustering.
ellipsePackagefordrawingellipsesandellipse-likeconfidenceregions.
event.chartPackageforcreatingeventcharts.
exactRankTestsComputesexactp-valuesandquantilesusinganimplementationoftheStreitberg/Roehmelshiftalgorithm.
fastICAImplementationofFastICAalgorithmtoperformIndependentComponentAnalysis(ICA)andProjectionPursuit.
fdimFunctionsforcalculatingfractaldimension.
fieldsAcollectionofprogramsforcurveandfunctionfittingwithanemphasisonspatialdata.Themajormethodsimplementedincludecubicandthinplatesplines,universalKrigingandKrigingforlargedatasets.ThemainfeatureisthatanycovariancefunctionimplementedinRcanbeusedforspatialprediction.
foreignFunctionsforreadingandwritingdatastoredbystatisticalsoftwarelikeMinitab,SAS,SPSS,Stata,etc.
fracdiffMaximumlikelihoodestimationoftheparametersofafractionallydifferencedARIMA(p,d,q)model(HaslettandRaftery,AppliedStatistics,1989).
gafitGeneticalgorithmforcurvefitting.
geeAnimplementationoftheLiang/ZegergeneralizedestimatingequationapproachtoGLMsfordependentdata.
geoRFunctionstoperformgeostatisticaldataanalysisincludingmodel-basedmethods.
gldBasicfunctionsforthegeneralised(Tukey)lambdadistribution.
gregmiscMiscellaneousfunctionswritten/maintainedbyGregoryR.Warnes.
gssAcomprehensivepackageforstructuralmultivariatefunctionestimationusingsmoothingsplines.
ineqInequality,concentrationandpovertymeasures,andLorenzcurves(empiricalandtheoretic).
leapsApackagewhichperformsanexhaustivesearchforthebestsubsetsofagivensetofpotentialregressors,usingabranch-and-boundalgorithm,andalsoperformssearchesusinganumberoflesstime-consumingtechniques.
lgtdlAsetofmethodsforlongitudinaldataobjects.
lmtestAcollectionoftestsontheassumptionsoflinearregressionmodelsfromthebookThelinearregressionmodelundertestbyW.KraemerandH.Sonnberger,1986,Physica.
locfitLocalRegression,likelihoodanddensityestimation.
logsplineLogsplinedensityestimation.
lokernKernelregressionsmoothingwithadaptivelocalorglobalplug-inbandwidthselection.
lpridgeLocalpolynomial(ridge)regression.
maptreeFunctionswithexampledataforgraphingandmappingmodelsfromhierarchicalclusteringandclassificationandregressiontrees.
maxstatMaximallyselectedrankandGaussstatisticswithseveralp-valueapproximations.
mclustModel-basedclusteranalysis.
mdaCodeformixturediscriminantanalysis(MDA),flexiblediscriminantanalysis(FDA),penalizeddiscriminantanalysis(PDA),multivariateadditiveregressionsplines(MARS),adaptiveback-fittingsplines(BRUTO),andpenalizedregression.
meanscoreMeanScoremethodformissingcovariatedatainlogisticregressionmodels.
mgcvRoutinesforGAMsandothergenralizedridgeregressionproblemswithmultiplesmoothingparameterselectionbyGCVorUBRE.
mlbenchAcollectionofartificialandreal-worldmachinelearningbenchmarkproblems,includingtheBostonhousingdata.
muhazHazardfunctionestimationinsurvivalanalysis.
multivFunctionsforhierarchicalclustering,partitioning,bondenergyalgorithm,Sammonmapping,PCAandcorrespondenceanalysis.
mvnmleMLestimationformultivariatenormaldatawithmissingvalues.
mvtnormMultivariatenormalandtdistributions.
netCDFReaddatafromnetCDFfiles.
nlmeFitandcompareGaussianlinearandnonlinearmixed-effectsmodels.
nlrqNonlinearquantileregression.
nnetSoftwareforsinglehiddenlayerperceptrons(feed-forwardneuralnetworks),andformultinomiallog-linearmodels.ContainedintheVRbundle.
normAnalysisofmultivariatenormaldatasetswithmissingvalues.
odesolveAninterfacefortheOrdinaryDifferentialEquation(ODE)solverlsoda.ODEsareexpressedasRfunctions.
ozFunctionsforplottingAustralia'scoastlineandstateboundaries.
panelFunctionsanddatasetsforfittingmodelstoPaneldata.
pcurveFitsaprincipalcurvetoanumericmultivariatedatasetinarbitrarydimensions.Producesdiagnosticplots.AlsocalculatesBray-Curtisandotherdistancematricesandperformsmulti-dimensionalscalingandprincipalcomponentanalyses.
permaxFunctionsintendedtofacilitatecertainbasicanalysesofDNAarraydata,especiallywithregardtocomparingexpressionlevelsbetweentwotypesoftissue.
pinktoeConvertsStreestoHTML/Perlfilesforinteractivetreetraversal.
polymarsPolychotomousregressionbasedonMultivariateAdaptiveRegressionSplines.
polynomAcollectionoffunctionstoimplementaclassforunivariatepolynomialmanipulations.
princurveFitsaprincipalcurvetoamatrixofpointsinarbitrarydimension.
psplineSmoothingsplineswithpenaltiesonordermderivatives.
quadprogForsolvingquadraticprogrammingproblems.
quantregQuantileregressionandrelatedmethods.
rmetaFunctionsforsimplefixedandrandomeffectsmeta-analysisfortwo-samplecomparisonofbinaryoutcomes.
rpartRecursivePARTitioningandregressiontrees.
scatterplot3dPlotsathreedimensional(3D)pointcloudperspectively.
semFunctionsforfittinggenerallinearStructuralEquationModels(withobservedandunobservedvariables)bythemethodofmaximumlikelihoodusingtheRAMapproach.
sgeostatAnobject-orientedframeworkforgeostatisticalmodeling.
smSoftwarelinkedtothebookAppliedSmoothingTechniquesforDataAnalysis:TheKernelApproachwithS-PLUSIllustrationsbyA.W.BowmanandA.Azzalini(1997),OxfordUniversityPress.
smaFunctionsforexploratory(statistical)microarrayanalysis.
snFunctionsformanipulatingskew-normalprobabilitydistributionsandforfittingthemtodata,inthescalarandthemultivariatecase.
snaArangeoftoolsforsocialnetworkanalysis,includingnodeandgraph-levelindices,structuraldistanceandcovariancemethods,structuralequivalencedetection,p*modeling,andnetworkvisualization.
spatialFunctionsforkrigingandpointpatternanalysisfromModernAppliedStatisticswithS-PLUSbyW.VenablesandB.Ripley.ContainedintheVRbundle.
splancsSpatialandspace-timepointpatternanalysisfunctions.
strucchangeVarioustestsonstructuralchangeinlinearregressionmodels.
survivalFunctionsforsurvivalanalysis,includingpenalisedlikelihood.
tensorTensorproductofarrays.
treeClassificationandregressiontrees.
tripackAconstrainedtwo-dimensionalDelaunaytriangulationpackage.
tseriesPackagefortimeseriesanalysiswithemphasisonnon-linearmodelling.
twostageFunctionsforoptimaldesignoftwo-stage-studiesusingtheMeanScoremethod.
wavethreshSoftwaretoperform1-dand2-dwaveletstatisticsandtransforms.
wleRobuststatisticalinferenceviaaweightedlikelihoodapproach.
xgobiInterfacetotheXGobiandXGvisprogramsforgraphicaldataanalysis.
xtableExportdatatoLaTeXandHTMLtables.
zmatrixMatriceswithnumericindicesstartingatzeroratherthanone.SeeCRANsrc/contrib/PACKAGESformoreinformation.
ThereisalsoaCRANsrc/contrib/DeveldirectorywhichcontainspackagesstillunderdevelopmentordependingonfeaturesonlypresentinthecurrentdevelopmentversionsofR.Volunteersareinvitedtogivetheseatry,ofcourse.ThisareaofCRANcurrentlycontains
GRASSInterfacebetweentheGRASSgeographicalinformationsystemandR,basedonstartingRfromwithintheGRASSenvironmentandchosenLOCATIONandMAPSET.WrapperandhelperfunctionsareprovidedforarangeofRfunctionstomatchtheinterfacemetadatastructures.
GenKernFunctionsforgeneratingandmanipulatinggeneralisedbinnedkerneldensityestimates.
R2HTMLFunctionsforexportingRobjectsgraphicsinanHTMLdocument.
StatDataMLReadandwriteStatDataML.
cxxAsmallC++testpackage.
doptFindingD-optimalexperimentaldesigns.
dseplusExtensionstodse,theDynamicSystemsEstimationmultivariatetimeseriespackage.ContainsPADI,juiceandmonitoringextensions.
ensembleEnsemblesoftreeclassifiers.
gridTheGridgraphicspackage,arewriteofthegraphicslayoutcapabilities,plussomesupportforinteraction.
hdf5InterfacetotheNCSAHDF5library.
hpowerAsuiteoffunctionstocomputepowerandsamplesizefortestsofthegenerallinearhypothesis.
latticeLatticegraphics,animplementationofTrellisGraphicsfunctions.
multidimCodeforcorrespondenceanalysisandothermultidimensionaldescriptivestatistics.
multilmAbasicmethodforfittingandtestingmultivariatelinearmodels,includingstabilizedtestproceduresbyLaeuteret.al.
npConfRatioNonparametricconfidenceintervalsfortheratiosofmedians.
plsUnivariatePartialLeastSquaresRegression.
regexpSimpleregularexpressioninterface.
write.snnsFunctionforwritingaSNNSpatternfilefromadataframeormatrix.
正在测试尚未完成的package：
CORBADynamicCORBAclient/serverfacilitiesforR.ConnectstootherCORBA-awareapplicationsdevelopedinarbitrarylanguages,ondifferentmachinesandallowsRfunctionalitytobeexportedinthesamewaytootherapplications.
OOPOOPstyleclassesandmethodsforRandS-PLUS.Objectreferencesandclass-basedmethoddefinitionaresupportedinthestyleoflanguagessuchasJavaandC++.
REmbeddedPostgresAllowsRfunctionsandobjectstobeusedtoimplementSQLfunctions--per-record,aggregateandtriggerfunctions.
RGnumericApluginfortheGnumericspreadsheetthatallowsRfunctionstobecalledfromcellswithinthesheet,automaticrecalculation,etc.
RJavaDeviceAgraphicsdeviceforRthatusesJavacomponentsandgraphicsAPIs.
RSMethodsAnimplementationofSversion4methodsandclassesforR,consistentwiththebasicmaterialinProgrammingwithdatabyJohnM.Chambers,1998,SpringerNY.
RSPerlAninterfacefromRtoanembedded,persistentPerlinterpreter,allowingonetocallarbitraryPerlsubroutines,classesandmethods.
RSPythonAllowsPythonprogramstoinvokeSfunctions,methods,etc.,andScodetocallPythonfunctionality.
SASXMLExampleforreadingXMLfilesinSAS8.2manner.
SJavaAninterfacefromRtoJavatocreateandcallJavaobjectsandmethods.
SLanguageFunctionsandCsupportutilitiestosupportSlanguageprogrammingthatcanworkinbothRandS-PLUS.
SNetscapePluginforNetscapeandJavaScript.
SXalanProcessXMLdocumentsusingXSLfunctionsimplementedinRanddynamicallysubstitutingoutputfromR.
SlccParsesCsourcecode,allowingonetoanalyzeandautomaticallygenerateinterfacesfromStothatcode,includingthetableofS-accessiblenativesymbols,parametercountandtypeinformation,SconstructorsfromCobjects,callgraphs,etc.
SxsltAnextensionmoduleforlibxslt,theXML-XSLdocumenttranslator,thatallowsXSLfunctionstobeimplementedviaRfunctions.
－－－－－－－－－－－－－－－－－－－－－－抱歉哈，都是英文 |
