Center a Matrix

Source: R/RcppExports.R

Obtains the mean of each column of the matrix and subtracts it from the given matrix in a centering operation.

center_matrix(x)

Arguments

x

A matrix with any dimensions

Value

A matrix with the same dimensions of X that has been centered.

Details

The application of this function to a matrix mimics the use of a centering matrix given by:

$${C_n} = {I_n} - \frac{1}{n}{11^T}$$

See also

cIRT()

Author

James Joseph Balamuta

Examples

nobs = 500
nvars = 20
x = matrix(rnorm(nobs * nvars), nrow = nobs, ncol = nvars) 
r_centered = scale(x) 
arma_centered1 = center_matrix(x)