is.fullrank {limma}R Documentation

Check for Full Column Rank

Description

Test whether a numeric matrix has full column rank.

Usage

is.fullrank(x)

Arguments

x a numeric matrix for vector

Details

This function is used to check the integrity of design matrices in limma, for example after subsetting operations.

Value

TRUE or FALSE

Author(s)

Gordon Smyth

Examples

# TRUE
is.fullrank(1)
is.fullrank(cbind(1,0:1))

# FALSE
is.fullrank(0)
is.fullrank(matrix(1,2,2))

[Package limma version 1.6.7 Index]