Clean way to find which elements of categorical array are part of a set of labels

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Daniel Armyr
Daniel Armyr 2016-2-8
回答： David Sanchez 2016-2-8
Hi. I have a categorical array. I want to find which elements belong to a set of labels. Here is an example of what I would like to write, but I obviously need some form of function here.
data = nominal( {'a', 'b', 'c', 'b', 'a'} )'
%This line will in fact not work, so I am looking for a clean way to write it.
isAorB = any(data == {'a', 'b'});
disp( isAorB );
1
1
0
1
1

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采纳的回答

David Sanchez
David Sanchez 2016-2-8
I think you are looking for this:
data = {'a', 'b', 'c', 'b', 'a'} ;
members = {'a','b'};
ismember(data,members)
ans =
1 1 0 1 1

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