replace maximum values of each row of a matrix

I have a huge matrix with i rows and j columns. I would like to find the max number for each row and, then, replace 1 in these positions and 0 in the other ones. For instance, I have matrix A

A = [1 4 3 0 ;6 0 5 9; 0 1 7 1 ; 1 5 3 1]

and I would like to produce matrix B.

B = [0 1 0 0 ;0 0 0 1; 0 0 1 0; 0 1 0 0]

I would like to have a code without using loops, as I am able to do it but the procedure time ts too long

Answer 1

[David Hill]

B=A==max(A,[],2);

[Micangi]

It works perfectly. However, I have an issue because there are some null rows in the "A" matrix, for instance:

A = [1 4 3 0 ;6 0 5 9; 0 1 7 1 ; 1 5 3 1; 0 0 0 0]

Hence, when I am using B=A==max(A,[],2), i get:

B= [0 1 0 0 ;0 0 0 1; 0 0 1 0; 0 1 0 0; 1 1 1 1]

How can I assign null rows in the B matrix when each row element is equal to 1? In other worlds, I would like to obtain at the end:

B=[0 1 0 0 ;0 0 0 1; 0 0 1 0; 0 1 0 0; 0 0 0 0]

[David Hill]

B(ismember(B,[1 1 1 1],'rows'),:)=[];