HDTD (version 1.6.0)

centerdata: Centering Transposable Data

Description

This function centers the transposable data around their sample mean matrix.

Usage

centerdata(datamat, N)

Arguments

datamat

numeric matrix containing the transposable data.

N

positive integer number indicating the sample size, i.e., the number of subjects.

Value

Returns a matrix of the same size as datamat.

Details

It is assumed that there are nrow(datamat) row variables and ncol(datamat)/N column variables in datamat. Further, datamat should be written in such a way that every ncol(datamat)/N consecutive columns belong to the same subject and the order of the column variables in each block is preserved across subjects.

See Also

covmat.hat and covmat.ts.

Examples

data(VEGFmouse)
## Centering the VEGF dataset around the sample mean matrix.
VEGFcen <- centerdata(VEGFmouse,40)