How to eliminate the rows with replication?

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Grace
Grace 2014-8-10
回答： Ahmet Cecen 2014-8-10
Hi, I have
a=[1 1 2],
I want to know all the possible arrangements of a, then I do the permutation which gives me:
> perms(a)
ans =
2 1 1
2 1 1
1 2 1
1 1 2
1 1 2
1 2 1
How to eliminate the rows that replicated? Thanks in advance.

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Ahmet Cecen
Ahmet Cecen 2014-8-10
C = unique(A,'rows')

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