MATLAB: Initializing Matrix for all possible sequences of numbers

Question

Say n=3, I want to initialize this vector…

[1 2 3; 1 3 2; 2 1 3; 2 3 1; 3 1 2; 3 2 1]

That is, all possible sequences for 1, 2 and 3.

    n = 3
    np = factorial(n);           % Number of possible combinations
    m = zeros(np,n);         % Allocate matrix
      for i = 1:np
          for j = 1:szp
              m(i,j) = 1
          end
      end

So, this is how far I am now. This writes 1 into m(1,1) then m(1,2)……m(6,3).

I can't think of a way using a loop to change the matrix to how I want to.

Any help is much appreciated.

Answer 1

doc perms
perms(1:3)