Question

e.g I have the original matrix (m) looks like this one

1 2
3 4

Then I use n = padarray(m,[oldMatrixRow,OldMatrixColumn]); I will have

x x x x x x
x x x x x x 
x x 1 2 x x 
x x 3 4 x x 
x x x x x x
x x x x x x

The point here is that I would want my new matrix look like this

1 2 1 2 1 2
3 4 3 4 3 4
1 2 1 2 1 2
3 4 3 4 3 4
1 2 1 2 1 2
3 4 3 4 3 4

Is there any smart way to do that ?

Thank you very much

Answer 1

You want repmat

B = repmat(A,m,n)

where A is the matrix you want to repeat, and m and n define the dimensions of how it is repeated

In your case here, call your original matrix A and use

B = repmat(A,3,3)

to get your desired output