How can I generate all possible combinations of a matrix which have a certain value?

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Roel
Roel 2014-10-20
评论： Roel 2014-10-20
How can matlab provide all possible combinations of a matrix which equals to zero? For example: I have the matrix a=[0 1 0; 1 1 0; 0 1 1] and matlab has to give the answer: 1 3 7 8, 1 3 7, 1 3 8, 1 7 8, 3 7 8, 1 3, 1 7, 1 8, 3 7, 3 8, 7 8.

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Andrei Bobrov
Andrei Bobrov 2014-10-20
n = find(a==0);
out = arrayfun(@(x)nchoosek(n,x),numel(n):-1:2,'un',0)

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