How can I replace values in a Matrix?

Hello Folks,

i have this following problem: I want to replace all values in a Matrix, which arent in the diagonal with the number 1.

Can someone give me a solution?

[Stephen23]

That sounds like homework. What have you tried so far?

Answer 1

[Nikhilesh]

% Define example matrix
A = [1 2 3; 4 5 6; 7 8 9];

% Get dimensions of matrix
[nrows, ncols] = size(A);

% Replace non-diagonal values with 1
for i = 1:nrows
    for j = 1:ncols
        if i ~= j
            A(i,j) = 1;
        end
    end
end