MATLAB: How can I fix this

permutations of rows

here is a code to get the permutation of each rows of a matrix
    a=[ 1     2     2
           2     2     3];
    for ii=1:size(a,1)
    q(ii,:,:)=unique(perms(a(ii,:)),'rows');
    end
    out = reshape(q,[],size(a,2),1)
out =
       1     2     2
       2     2     3
       2     1     2
       2     3     2
       2     2     1
       3     2     2
but if consider this matrix
   A=[0,0,0;2,2,1;3,0,0]
it gives an error
??? Assignment has more non-singleton rhs dimensions than non-singleton
subscripts
Why? and how can I fix it?

Best Answer

One way,
    q=cell(size(a,1),1);
    for ii=1:size(a,1)
     q{ii}=unique(perms(a(ii,:)),'rows');
    end
    out=cell2mat(q);
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