comparing categorical arrays in terms of content
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I have two categorical arrays A and B. I want to idenitfy
- common elements of A and B
- elements that are in one of them but not in both of them
3 Comments
KALYAN ACHARJYA
on 24 Jan 2021
@Matt Gaidica provided the suffcient information, just use ismember, it is simple. Please refer MATLAB doc.
Accepted Answer
Adam Danz
on 24 Jan 2021
ismember alone can answer the first point (common elements of A and B) but not the 2nd since it only tests whether elements of A are in B but not whether elements of B are in A. For example,
A = categorical({'a' 'b' 'c' 'e'}');
B = categorical({'a' 'b' 'c' 'd'}');
[LIA,LOCB] = ismember(A,B)
setxor can show their differences.
[C,~,~] = setxor(A,B)
3 Comments
Adam Danz
on 24 Jan 2021
Check out the first sentence of the documentation for each function. If that's not clear I'd be happy to explain.
You could also experiment to see what the differences are .
A = categorical({'a' 'b' 'c' 'e'}');
B = categorical({'a' 'b' 'c' 'd'}');
setdiff(A,B)
setdiff(B,A)
setxor(A,B)
setxor(B,A)
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