MATLAB: Generating a random binary matrix

binarymatrixrandomly

Hello,

I want to generate randomly a (nxm) matrix of binary variables (0 and 1) in matlab. Is there someone who has a suggestion? Thanks.

A = randi([0 1], n,m)

try:

N=2; % no. of rows needed
M=rand(5)  % generate a 5x5 matrix random
c=randperm(length(M),N)  
B=M(c,:)  % output matrix

Your row indexing is wrong.

The first n rows are 1:n which you have correct.

The second n rows indexing is n more that the first set, so simply add n: n + (1:n)

The third n rows indexing is n more than the second set, which I will let you figure out (it's pretty simple)