Statistical functionsΒΆ

The statistical functions extension provides many new functions for generating samples from random distributions, and calculating statistics.

It is built on the jStat library and follows its API quite closely.

Here’s a list of the supported functions, as of January 2013. For information on usage, please see the jStat documentation.

  • sum
  • sumsqrd
  • sumsqerr
  • product
  • min
  • max
  • mean
  • meansqerr
  • geomean
  • median
  • cumsum
  • diff
  • mode
  • range
  • variance
  • stdev
  • meandev
  • meddev
  • coeffvar
  • quartiles
  • covariance
  • corrcoeff
  • betapdf
  • betacdf
  • betainv
  • betamean
  • betamedian
  • betamode
  • betasample
  • betavariance
  • centralfpdf
  • centralfcdf
  • centralfinv
  • centralfmean
  • centralfmode
  • centralfsample
  • centralfvariance
  • cauchypdf
  • cauchycdf
  • cauchyinv
  • cauchymedian
  • cauchymode
  • cauchysample
  • chisquarepdf
  • chisquarecdf
  • chisquareinv
  • chisquaremean
  • chisquaremedian
  • chisquaremode
  • chisquaresample
  • chisquarevariance
  • exponentialpdf
  • exponentialcdf
  • exponentialinv
  • exponentialmean
  • exponentialmedian
  • exponentialmode
  • exponentialsample
  • exponentialvariance
  • gammapdf
  • gammacdf
  • gammainv
  • gammamean
  • gammamode
  • gammasample
  • gammavariance
  • invgammapdf
  • invgammacdf
  • invgammainv
  • invgammamean
  • invgammamode
  • invgammasample
  • invgammavariance
  • kumaraswamypdf
  • kumaraswamycdf
  • kumaraswamymean
  • kumaraswamymedian
  • kumaraswamymode
  • kumaraswamyvariance
  • lognormalpdf
  • lognormalcdf
  • lognormalinv
  • lognormalmean
  • lognormalmedian
  • lognormalmode
  • lognormalsample
  • lognormalvariance
  • normalpdf
  • normalcdf
  • normalinv
  • normalmean
  • normalmedian
  • normalmode
  • normalsample
  • normalvariance
  • paretopdf
  • paretocdf
  • paretomean
  • paretomedian
  • paretomode
  • paretovariance
  • studenttpdf
  • studenttcdf
  • studenttinv
  • studenttmean
  • studenttmedian
  • studenttmode
  • studenttsample
  • studenttvariance
  • weibullpdf
  • weibullcdf
  • weibullinv
  • weibullmean
  • weibullmedian
  • weibullmode
  • weibullsample
  • weibullvariance
  • uniformpdf
  • uniformcdf
  • uniformmean
  • uniformmedian
  • uniformmode
  • uniformsample
  • uniformvariance
  • binomialpdf
  • binomialcdf
  • geometricpdf
  • geometriccdf
  • geometricmean
  • geometricmedian
  • geometricmode
  • geometricsample
  • geometricvariance
  • negbinpdf
  • negbincdf
  • hypgeompdf
  • hypgeomcdf
  • poissonpdf
  • poissoncdf
  • poissonmean
  • poissonsample
  • poissonvariance
  • triangularpdf
  • triangularcdf
  • triangularmean
  • triangularmedian
  • triangularmode
  • triangularsample
  • triangularvariance
  • zscore
  • ztest
  • tscore
  • ttest
  • anovafscore
  • anovaftest
  • ftest
  • normalci
  • tci
  • betafn
  • betaln
  • betacf
  • ibetainv
  • ibeta
  • gammaln
  • gammafn
  • gammap
  • factorialln
  • factorial
  • combination
  • permutation
  • gammapinv
  • erf
  • erfc
  • erfcinv
  • randn
  • randg