finding mismatched elements ~ismember
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A = [1 2 3;2 3 4;3 4 5;4 5 6;5 6 7;6 7 8;7 8 9]
B = [2 3 4;6 7 8]
flag = ~ismember(A,B,'rows');
index = find(flag);
q = A(index(flag))
The error is
??? Index exceeds matrix dimensions.
and The index finds only first elements of each row. The remaining two should also find it.. So, how to do it.?
2 个评论
Matt J
2012-12-25
The index finds only first elements of each row. The remaining two should also find it.
This is not clear. Write explicitly what you want "index" and "q" to be.
Andrei Bobrov
2012-12-25
q = A(flag,:);
or
q = A(index,:);
采纳的回答
Matt J
2012-12-25
q = setdiff(A,B,'rows')
更多回答（1 个）
Walter Roberson
2012-12-25
0 个投票
Are these integers or numbers with fractions? If they are numbers with fractions then you cannot use ismember() in most cases.
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2012-12-25
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