find the repetition of matrix rows

I want to find out if the row i of mxn matrix is repeated ,the code should give logic 1.Otherwise zero"there are many ways but Im searching for the best one" Thanks

Answer 1

[the cyclist]

Using the algorithm that Jan Simon posted in this Answer.

% Example of data
X = [6 5 4;
     1 2 3;
     1 2 3; 
     1 2 4;
     1 2 3];

[~,~,A] = unique(X,'rows','stable');

[n, bin] = histc(A, unique(A));
multiple = find(n > 1);
indexToDuplicate = ismember(bin, multiple);

[yousef Yousef]

Thanks a lot for this help