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How to use use = logical operator on multiple values?

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Koki
Koki 2020-4-21
回答： Mohammad Sami 2020-4-21
For example if I had vector A = [1,5,8,2,6,4,3];
And I want to check if A equal to 1st value, 2nd value or 4th value
istead of doing:
A1 = (A == A(1))| (A == A(2)) | (A == A(4))
Is there a shorter way, so like: A1 == A(1,2,4)
idk how to explain soz
  2 个评论
Ameer Hamza
Ameer Hamza 2020-4-21
Koki, can you explain with a clear example. What does the statement "A equal to 1st value, 2nd value or 4th value" means? A is a vector, and its elements are scalar? How do you want to compare?

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Mohammad Sami
Mohammad Sami 2020-4-21
As suggested by stephen, you can simply use ismember
A1 = ismember(A,A([1 2 4]));

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