Remove rows in a matrix not having same element

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subhashree priyadarshini
评论： subhashree priyadarshini 2020-10-2
I am having a matrix
A =[1 2 3;
1 2 6;
1 2 7;
1 3 6;
1 3 7;
1 6 7;
2 3 6;
2 3 7;
2 6 7;
3 6 7]
I need the rows having element 2 means final matrix should be
A =[1 2 3;
1 2 6;
1 2 7;
2 3 6;
2 3 7;
2 6 7]

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采纳的回答

Mario Malic
Mario Malic 2020-10-2
This should work
Loc = ismember(A, 2)
idx = any(Loc,2)
B = A(idx, :)

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