How to find unique values in a matrix without looping over rows
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Hi,
I have an m by n matrix A that has repeat non-zero values in every row. The number of non-zero elements varies across rows. I would like to keep only unique values, but can't seem to figure out how to do that without looping. Matrix size is big, so I tried looping and it's not an option...
I tried using unique function, but can't get it to do what I need. I would appreciate any advice.
Thank you,
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Answers (2)
Stephen23
on 27 Jan 2021
M = randi([0,9],3,13)
W = sort(M,2);
W(diff(W,1,2)==0) = 0;
W = sort(W,2) % optional
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