How to generate 0 and 1 with equal probability using 'randi' function?

Binary random number generator, generating 0 and 1 with equal probability (using 'randi' function). i tried with randi (M, N, [0 1]) to generate random numbers of matrix size MxN in the range 0 and 1 with equal probability.

[Md. Tariqul Amin]

i tried with *randi (M, N, [0 1])* to generate random numbers of matrix size MxN in the range 0 and 1 with equal probability. But,it's not working

Answer 1

[Geoff]

You did it backwards. Do this:

nums = randi([0 1], M, N)

Please note that while there is equal probability of randomly generating a zero or a one, that does NOT mean that your matrix will have the same number of zeros and ones.

If you require exactly 50% 0/1, then you need to do this:

nums = mod( reshape(randperm(M*N), M, N), 2 );

Bearing in mind that M*N must be an even number.

[Md. Tariqul Amin]

Thanks. I just did that backwards,it's working now

[Usman Ali]

Hi dear, I have the same question with different parameters. I have 4 different discrete signals. each with 1000 samples per second. I want to generate the sum of all these 4 signals with equal probab such that at the end I get 100 signals (this contains 25% of each signal, 25 copies of same signal at different places). Hope that you get my point. I can apply switch and case for the for signals, only I need to generate number between 1 and 4 with equal probability of occurance