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Finding rows in matrix containing numbers from vector

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Niels Brummerstedt
Niels Brummerstedt 2018-11-24
回答： Bruno Luong 2018-11-24
I have a matrix and a row vector
M = [1 4 3; 1 2 5; 3 2 1; 5 3 4; 2 3 5];
A = M(1,:);
Now, I wish to find the indices of all rows in M containing at least two of the values in A. As such, the desired output is
index = [1; 3; 4];
How would I do that?

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Bruno Luong
Bruno Luong 2018-11-24
find(sum(ismember(M,A),2)>=2)

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