How do I delete repetitions of rows in a matrix?
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Suppose I have the following matrix (the one I'm working on has 1000x1000 cells, so I'll simplify things):
a=[1,2,3; 8,7,8; 1,2,3; 5,6,0; 2,5,7; 2,5,7];
I want to get rid of rows that repeat themselves, so that I have one row left from each repetition set. The desired matrix in this case would be:
a=[1,2,3; 8,7,8; 5,6,0; 2,5,7];
How do I do this?
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Andrei Bobrov
2015-5-7
out = unique(A,'rows','stable');
old version of MATLAB:
[~,b] = unique(A,'rows','first');
out = A(sort(b),:);
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