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Centering a squared matrix by row or column

Source: R/normalization.R
centerX.Rd

It centers a numeric matrix with dimension N x N by row (rows=TRUE) or column (rows=FALSE).

Usage

centerX(X, rows = TRUE)

Arguments

X

Numeric matrix or data.frame of any size.

rows

If TRUE, the operation is done by row; otherwise, it is done by column. (Defaults: TRUE).

Value

Centered X (class "matrix").

Examples

dat <- matrix(rnorm(25),ncol=5,nrow=5)
centerX(dat)
#>            [,1]       [,2]       [,3]       [,4]       [,5]
#> [1,] -0.9553856  1.4178669 -1.5736245  0.7274453  0.3836978
#> [2,]  0.7216529 -0.3567449 -0.7980812  0.3183801  0.1147931
#> [3,]  0.3503425 -0.2759764 -0.9413944  1.5138252 -0.6467970
#> [4,]  1.4281815 -1.5649749  0.6310367 -0.8904160  0.3961727
#> [5,]  0.3153718  0.4870049  0.8592118 -1.4737129 -0.1878755