[Gretl-users] Resample without replacement

Hi all, From what I see, Matlab uses ====== p = randperm(n) p = randperm(n,k) Description p = randperm(n) returns a row vector containing a random permutation of the integers from 1 to n inclusive. p = randperm(n,k) returns a row vector containing k unique integers selected randomly from 1 to n inclusive. ====== to create an index of integers that can be used then to select/permute the columns (or rows) of a matrix Yiannis