ANTsR (version 0.3.3)

whiten: Simple whitening function.

Description

Whitens the input matrix using SVD and returns the result.

Usage

whiten(x, k = NA, reducex = FALSE)

Arguments

x

input matrix

k

rank to use

reducex

reduce the input matrix to k-size subspace

Value

matrix is output

Examples

mat <- matrix(rnorm(300),ncol=50)
wmat<-whiten( mat )
wmat2<-whiten( mat, 2, TRUE )