Generate numbers randomly from a set?

Question

In MATLAB, I have a set of P numbers. I would like to generate a random array of size N from this set.

For the sake of example, let say I h

Answer 1

You should use datasample,

y = datasample(data,k) returns k observations sampled uniformly at random, with replacement, from the data in data.

a = [1,4];
datasample(a,5)

Depending on the usage, you might consider using,

datasample(unique(a),5)