Generate random binary matrix (Matlab)

Dear members

I want generate binary matrix of dimensions M*N in which the number of ones in each row (ones_row) and column (ones_column) is equal.

Answer 1

[David Hill]

Brute force might work for you. Obviously, some combinations of N,M,n,m will not work.

N=10;M=5;%matrix size
n=6;%number of ones in a row
m=3;%number of ones in a column
a=[ones(1,n),zeros(1,N-n)];
b=a;
c=zeros(M,N);
while ~all(b==m)
    for k=1:M
        c(k,:)=a(randperm(N));
    end
    b=sum(c);
end

[Afluo Raoual]

@David Hill Yeah unfortunaltely it doesn't work with other cases