How can I generate all possible combinations of a vector containing specific numbers in it?

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For example, consider this vector A
A = [1 1 1 0 0 0 0 0].
I need all combinations of this vector so that there are 3 ones and 5 zeros. the number of combinations is 56 here.
I tried using randperm but I'm getting repeated vectors.
Kindly help solve this

Accepted Answer

Bruno Luong
Bruno Luong on 3 Apr 2021
accumarray([I(:) J(:)],1)

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