How to find repeated values in an array?
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How can I find repeated values by columns in an array (12x2)?
A = 26 24
28 35
31 34
33 31
33 31
33 28
35 25
31 26
30 26
28 29
27 30
26 32
As can be seen, the repeated values are [33 31]. I tried to use the unique function but it only finds the unique values in a column.
[C1, ia1, ic1] = unique(A(:,1),'stable', 'rows');
Thanks in advance.
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Matt J
il 10 Dic 2020
A = [26 24
28 35
31 34
33 31
33 31
33 28
35 25
31 26
30 26
28 29
27 30
26 32];
[C1, ia1, ic1] = unique(A,'stable', 'rows');
reps=C1(splitapply(@numel,ic1,ic1)>1 ,:)
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