Drawing random numbers according to a particular scheme

I have a vector, p, and each entry in p is a number between 0 and 1. Moreover, the sum of all entries in p is exactly 1. Another vector, let's call it outcomes, has the same length as p and as its name suggests, this second vector contains information about possible outcomes. Combining the vectors thus describes, for example, that the probability of encountering outcomes(1,3) is p(1,3).

My question is the following: how can I use MATLAB to generate random numbers according to p?

Answer 1

[Walter Roberson]

Use randsample() with a weights vector.