how to put only one element randomly in row of matrix

Hello,

Can anyone help me please, I didn't a solution

I'd like to put only one element of row to 1 'randomly' and the other putted in 0

Exemple I have A= zeros (4,3) I like to get A= [0 1 0; 1 0 0; 0 0 1; 1 0 0]

Answer 1

[KSSV]

A = zeros(4,3) ; 
[m,n] = size(A) ;
for i = 1:m
    idx = randperm(n,1) ; 
    A(i,idx) = 1 ;
end

[Meriem Ben Kalia]

Thank you very much for the help you have given