nonZero: Return the nonzero columns and rows

In matt-sutton/sgspls: Sparse group-subgroup partial least squares

Description

Quick function for finding the nonzero columns of a matrix.

Usage

nonZero(Z, thresh = 1e-06, zero.col = NULL)

Arguments

Z	A matrix of variables, where some columns or rows are entierly zero.
thresh	A threshold value to round values off at.
zero.col	A vector of columns to take for the removal of the matrix.

Examples

a <- matrix(c(rep(0,3),1,0,1,rep(0,3)),3,3)
a
nonZero(a) #removes all rows and columns with nonzero elements
nonZero(a,zero.col = 2) # removes only nonzero rows and columns from row 2.

matt-sutton/sgspls documentation built on June 22, 2019, 10:21 a.m.