How can I figure out which element in the array is repeated and how many times?
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Hi every one, I have a problem with matrix.
Code:
A = {''A'', "B", ''C''; "D", "E", "F"; ''A'', "G", "H"; ''C'', "Y", "C"};
How can I figure out which element in the array is repeated and how many times?
Thanks and Best Regards,
Kiet Vo
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Accepted Answer
Wan Ji
on 18 Aug 2021
Hi, friend, using histcounts, things will be simple
A = {'A', 'B', 'C'; 'D', 'E', 'F'; 'A', 'G', 'H'; 'C', 'Y', 'C'};
A = categorical (A);
[counts, val] = histcounts(A)
Results become
counts =
2 1 3 1 1 1 1 1 1
val =
1×9 cell 数组
{'A'} {'B'} {'C'} {'D'} {'E'} {'F'} {'G'} {'H'} {'Y'}
8 Comments
Wan Ji
on 21 Aug 2021
That's Simple to solve
function [x, characters, counts]= another_function(A)
A = categorical (A);
[counts, val] = histcounts(A);
q = counts>=2;
counts = counts(q);
characters = val(q);
x = 2*counts;
end
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