Looping for replace matrix elements

Helo,

I have matrix 3x3, let's say

XX = [3,0,0;
      0,3,3;
      4,5,4]

I want to generate matrix 9x3 which value same with matrix XX every forth row. as illustration:

XXnew = zeros (9,3)

as result :

XXnew = [3,0,0;
         0,3,3;
         4,5,4;
         3,0,0;
         0,3,3;
         4,5,4;
         3,0,0;
         0,3,3;
         4,5,4];

How to code with "for end" function.

Thank you!

Answer 1

[KSSV]

   XX = [3,0,0;0,3,3;4,5,4] ;
   iwant = repmat(XX,3,1);

doc repmat.

Answer 2

[the cyclist]

XXnew = repmat(XX,3,1);