Generate random numbers matrix with different probabilities

How do I generate a 15x20 matrix with random numbers between -5 and 23 but the negative numbers (Including 0) are twice as likely to appear than positive numbers?

Answer 1

[Ameer Hamza]

This is one way

candidates = [-5:0 -5:0 1:23]; % twice as many candidates from -5 to 0
idx = randi(numel(candidates), 15, 20);
x = candidates(idx);

To see if it really work, create a large matrix x and see the histogram of its values

candidates = [-5:0 -5:0 1:23]; % twice as many candidates from -5 to 0
idx = randi(numel(candidates), 100, 200);
x = candidates(idx);
histogram(x(:))

[Sander Nys]

Thank you very much!

[Ameer Hamza]

I am glad to be of help!