Randomized Groups of Array

If I have an array of doubles, how would I place those numbers into randomized groups? Ex. I have 250 numbers and I want them in 50 groups of 5 or 25 groups of 10, but all randomized.

Answer 1

[Matt J]

Ex. I have 250 numbers and I want them in 50 groups of 5

reshape( randperm(250) , 5,50)

or 25 groups of 10,

reshape( randperm(250) , 10,25)