— Function File: gamrnd (a, b, r, c)
— Function File: gamrnd (a, b, sz)
Return an r by c or a size (sz) matrix of
random samples from the Gamma distribution with parameters a
and b. Both a and b must be scalar or of size
r by c.
If r and c are omitted, the size of the result matrix is
the common size of a and b.