collapse: Column-wise average a matrix of variables, collapsing over...

In bbuchsbaum/neuroca: neuroca: multiblock component analysis for neuroimaging data

Column-wise average a matrix of variables, collapsing over some set of factors

Description

Column-wise average a matrix of variables, collapsing over some set of factors

Usage

collapse(form, X, design)

Arguments

form	the formula defining the model to collapse over
X	the matrix to collpased over rows
design	the data.frame containing the variables reference in form

Examples

X <- matrix(rnorm(20*10), 20, 10)
des <- data.frame(a=rep(letters[1:4], 5), b=factor(rep(1:5, each=4)))
xcoll <- collapse(~ a+b, X, design=des)

bbuchsbaum/neuroca documentation built on April 22, 2022, 2:50 a.m.