MATLAB: How to make sure that all rows of a matrix are unique

matrixmatrix manipulation

I have X which is a matrix that I want to delete all rows that are similar to make sure that all rows are unique.

Is there a way to do that? Thanks!

Sorry, I didn't notice it's answered before. I found this helpful:

https://www.mathworks.com/matlabcentral/answers/299722-remove-duplicate-rows-from-a-matrix

You can achieve it using this script.

m = [];
for i = 1 : numel(pop)
    m = [m ; pop(i).x];
end
[~ , ia , ~] = unique(m , 'rows');
pop = pop(ia);

Use the second return value of unique:

[~, rowstokeep] = unique(A(:, 2:end), 'rows');
newA = A(rowstokeep, :)