overlapMatrix: Compute a matrix indicating overlaps between groups

In grpregOverlap: Penalized Regression Models with Overlapping Grouped Covariates

Description

Compute a matrix indicating the number of overlaps between groups.

Usage

overlapMatrix(X, group)

Arguments

X	The design matrix, without an intercept, as in grpregOverlap.
group	A list of vectors containing group information, as in grpregOverlap.

Details

This function is intended to provide an interface for users to check the overlapping structure among groups.

Value

A square (sparse) matrix C: C[i, j] is the number of overlapped variables between group i and j. Diagonal value C[i, i] is the number of variables in group i.

Author(s)

Yaohui Zeng <[e-mail]>

Examples

data(pathway.dat)
X <- pathway.dat$expression
group <- pathway.dat$pathways
overlap.mat <- overlapMatrix(X, group)

Example output

Loading required package: Matrix
Loading required package: grpreg

grpregOverlap documentation built on May 2, 2019, 4:47 a.m.