chisq_colpairs: Chi-square test on all pairs of columns
Description
Perform a chi-square test for independence for all pairs of columns of a matrix.
Usage
chisq_colpairs(x)
Value
A matrix of size p x p, where p is the number of columns in
the input matrix x, containing the chi-square test
statistics for independence, applied to pairs of columns of
x. The diagonal of the result will be all NAs.
Arguments
x
A matrix of positive integers. NAs and values <= 0 are treated as missing.