randomize permutates independently the entries in
each column of a matrix-like object, to produce random
data that can be used in permutation tests or bootstrap
analysis.
Usage
randomize(x, ...)
Value
a matrix
Arguments
x
data to be permutated. It must be an object
suitable to be passed to the function
apply.
In the context of NMF, it may be used to generate random
data, whose factorization serves as a reference for
selecting a factorization rank, that does not overfit the
data.