How to check if any component of a vector/matrix is matching with any of the component of another vector?

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SALMAN KHAN
SALMAN KHAN 2023-3-5
评论： SALMAN KHAN 2023-3-5
% Let say I have two vector A and B,
A = [2 3 4 1 4 9 10];
B = [2 9];
if ismember(A,B)
C = 2*A;
else
C = 0*A;
end
It is giving me zero vector but it should give me 2A. I know that I can use any(ismember(A,B) to get desired result but let say A is matrix (instead of vector) and I want to check if any of the component in A matrix is matching with any component of B vector then "If" condition should satisfy. I dont want to use any(any(...)). Is there any direct way to do that? Thanks.

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采纳的回答

Dyuman Joshi
Dyuman Joshi 2023-3-5
Ran in:
%modified A to be a matrix
A = [2 3 4; 1 4 9; 10 5 6];
B = [2 9];
%You can use intersect to find if there are any
%common elements
any(intersect(B,A))
ans = logical
1
%or change the order of the input
any(ismember(B,A))
ans = logical
1

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