How to find unique values in a matrix without looping over rows

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,

Answer 1

[Cris LaPierre]

out = unique(A(:))

Answer 2

[Stephen23]

M = randi([0,9],3,13)

M = 3×13

3 6 6 9 8 5 7 8 6 7 1 4 5 1 4 5 3 6 5 4 9 4 3 7 5 6 2 1 6 0 7 5 8 4 3 8 4 0 0

W = sort(M,2);
W(diff(W,1,2)==0) = 0;
W = sort(W,2) % optional

W = 3×13

0 0 0 0 0 1 3 4 5 6 7 8 9 0 0 0 0 0 0 1 3 4 5 6 7 9 0 0 0 0 0 1 2 3 4 5 6 7 8