Repeat vectors within a matrix multiple times

Hi, I am looking for an efficient approach (without a for loop) to repeat a vector multiple times within a matrix.

For e.g. x = [1 2; 3 4; 5 6]

I want to repeat each row n times:

if n = 2: x = [1 2; 1 2; 3 4; 3 4; 5 6; 5 6]. The important point is that the repeated rows should be together.

I was thinking of using repmat, but that allows me to repeat the matrix and not vectors within the matrix..as far as I know, any help would be great!

Answer 1

[Azzi Abdelmalek]

n=3
out=reshape(repmat(x',n,1),size(x,2),[])'

Answer 2

[Andrei Bobrov]

x(ones(n,1)*(1:size(x,1)),:);

or

x(kron(1:size(x,1),ones(1,n)),:);

Answer 3

[Jan]

n = 2;
kron(x, ones(n, 1))