repeat element in an array

Hello, If I have this matrix A = A = [1 1 1; 2 2 2; 3 3 3]; and I want to get this result C = [1 1 1; 1 1 2; 1 1 3; 1 2 1; 1 2 2; 1 2 3; 1 3 1; . . .; . . .; 3 3 1; 3 3 2; 3 3 3] I need the elements to be repeated to get the C matrix.

Please help me with that, thanks.

Answer 1

[Oleg Komarov]

combinator(3,3,'p','r')

On the fex: http://www.mathworks.com/matlabcentral/fileexchange/24325-combinator-combinations-and-permutations

Answer 2

[Sean de Wolski]

One way:

[xx yy zz] = ndgrid(1:3);
C = [xx(:) yy(:) zz(:)]