The ade4 Package - NexTag Supports Open Source Initiatives

scalewt 255
scalewt
Centring and Scaling a Matrix of Any Weighting
Description
transforms a numeric matrix in a centred and scaled matrix for any weighting.
Usage
scalewt(X, wt = rep(1, nrow(X)), center = TRUE, scale = TRUE)
Arguments
X
wt
center
scale
a numeric matrix (like object)
a vector of weighting
a logical value indicating whether the array should be centred
a logical value indicating whether the array should be scaled
Value
returns a centred, scaled matrix
Note
The norms are calculated with 1/n and the columns of null variance are still equal to zero.
Author(s)
Daniel Chessel
Examples
scalewt(matrix(1:12,4,3))
scale((matrix(1:12,4,3)))
scale(matrix(1,4,3))
scalewt(matrix(1,4,3))