Basic functions

Arithmetic & Mathematical       "as.xx" -- Coercing Object Types       "is.xx" -- Testing for object qualities       Logical       Rounding Options       Set Functions       Summary Functions       Main Menu

Arithmetic & Mathematical

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^/*
-+abs
acosasinatan
choosecoscrossprod
expfactoriallog
log10sinsolve
sqrtttan

"as.xx" -- Coercing Object Types

Note data.matrix for changing data frames to matrices often behaves better than as.matrix

as.characteras.factoras.list
as.matrixas.numericdata.matrix

"is.xx" -- Testing for object qualities

is.characteris.data.frameis.element
is.factoris.finiteis.function
is.infiniteis.listis.matrix
is.nais.nullis.numeric
modestrtypeof

Logical

!|&
>=<=>
<!===
%in%is.nawhich
which.maxwhich.min

Rounding Options

ceilingfloorround
signiftrunc

Set Functions

%in%intersectis.element
setdiffsetequalunion

Summary Functions

colMeanscolSumscor
difffivenummad
maxmax.colmean
medianminprod
quantilerangerowMeans
rowSumssdsum
summarytablevar
which.maxwhich.min