centerX function

Cluster-center a design matrix around cluster means

Given a design matrix and a cluster identification variable. A new design matrix is returned, where each column is centered around its cluster mean. Using C++ code for speed. latin1

centerX(x, id)

Arguments

• x: A design matrix
• id: A cluster identifying variable.

Details

centerX is written as a help function with the aim of being fast.

Returns

A matrix with cluster centered columns.

Author(s)

Johan Zetterqvist, Arvid