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11.3Descriptivestatisticfunctions

numberofelementsofgroup’grp1’nameofithelementofgroup’grp1’absolutevalueexponential

naturallogarithm(ln)squareroot nsumofallX:=1Xt tn

2sum-of-squares:t=1Xt

numberofelementsinx

maximumoftheseriesXminimumoftheseriesXmedianoftheseriesXmeanoftheseriesX

standarddeviationoftheseriesXq-thquantileoftheseriesX

correlationbetweentheSeriesXandY1storderautocorrelationcovariance

computestheCholeskydecompositionofm1

largestintegernotgreaterthanx,e.g.@ oor(1.23)=1

grp1.@count

%str=grp1.@seriesname(i)@abs(x)@exp(x)@log(x)@sqr(x)@sum(X)@sumsq(X)@obs(x)@max(X)@min(X)@median(X)@mean(X)@stdev(X)

@quantile(X,q)@cor(X,Y)

@cor(X,X(-1))@cov(X,Y)

@cholesky(m1)@floor(x)

11.4Matrixfunctions

placesthecolumnvectorvintothematrixmatcolumnnplacestherowvectorrintothematrixmatrown

placesthematrixm2intom1atrown1andcolumnn2Choleskyfactorizationofs

extractsavectorfromcolumnnofthematrixobjectmextractsarowvectorfromrownofthematrixobjectmnumberofcolumnsinthematrixobjectoquantileoftvdistribution

generatestvdistributedrandomvariablesquantileofχ2vdistribution

generatestvdistributedrandomvariables

colplace(m,v,n)rowplace(m,v,n)

matplace(m1,m2,n1,n2)@cholesky(s)

@columnextract(m,n)@rowextract(m,n)@columns(o)@qtdist(p,v)@rtdist(v)@qchisq(p,v)@rtdist(v)

12Operators

+,-,*,/,^>,<,=,<><=,>=and,or

add,subtract,multiply,divide,raisetopowergreater,less,equal,notequal

lessthanorequal,greaterthanorequallogicaland,logicalor

(seealso:help,functionreference)