Colwise means or variances

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Description

Computes the colwise means or variances of a matrix - internal use

Usage

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ccolmv(X,compute_var=FALSE)

Arguments

X

matrix of type: matrix or dgCMatrix

compute_var

boolean, defines whether the colwise variances rather than the means will be returned

Value

Numeric Vector of colwise means or variances of X

Examples

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X <- matrix(rnorm(1000*500),1000,500)
means <- ccolmv(X)
vars <- ccolmv(X,compute_var=TRUE)