nmfCheck enables to quickly check that a given NMF
algorithm runs properly, by applying it to some small
nmfCheck(method = NULL, rank = max(ncol(x)/5, 3), x = NULL, seed = 1234, ...)
NULL, a random 20 x 10 matrix is generated
the result of the NMF fit invisibly.
# test default algorithm nmfCheck() # test 'lee' algorithm nmfCheck('lee')