In "nchoosek" function, how to do some of elements of matrix are the same?

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Brian Kim
Brian Kim 2017-9-19
回答： Andrei Bobrov 2017-9-19
the title just is question.
I want to get including that

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Andrei Bobrov
Andrei Bobrov 2017-9-19
>> nchoosek(A,2)
ans =
6 6
6 7
6 7
6 9
6 11
6 13
6 7
6 7
6 9
6 11
6 13
7 7
7 9
7 11
7 13
7 9
7 11
7 13
9 11
9 13
11 13
>> nchoosek(unique(A),2)
ans =
6 7
6 9
6 11
6 13
7 9
7 11
7 13
9 11
9 13
11 13
>>

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