sample.cols: resample the columns of a matrix

In multivariance: Measuring Multivariate Dependence Using Distance Multivariance

Description

resample the columns of a matrix

Usage

sample.cols(x, vec = 1:ncol(x), replace = TRUE, incl.first = TRUE)

Arguments

x	matrix
vec	vector, indicates which columns belong together
replace	boolean, sampling with or without replacement
incl.first	boolean, if TRUE also the first component is resampled

Value

Returns a matrix with the same dimensions as x. The columns are resampled from the original columns. The resampling is done with replacement (replace = TRUE) or without (replace = FALSE). Columns which belong together (indicated by vec) are resampled identically, i.e., all values in rows of these are kept together.

Examples

sample.cols(matrix(1:15,nrow = 5),vec = c(1,1,2))

multivariance documentation built on Oct. 6, 2021, 5:08 p.m.