Reshape matrix in the desired form

Hi all,

My problem is that I would like to reshape a specific matrix in the form that I desire for my calculations, however I don't seem to be able to get it exactly as I want. Here is the specific example to my problem:

I have the following code:

 a = [1 2 3 4] ;
 b = [5 6 7 8] ;
 [x, y] = meshgrid(a,b) ;
 A = x ;
 A(:,:,2) = y ;

The above gives me an output as I desire, in the following form:

 A(:,:,1) =

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

 A(:,:,2) =

     5     5     5     5
     6     6     6     6
     7     7     7     7
     8     8     8     8

At this point, I would like to create another matrix called B, based on A, such that:

 B = [1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 
      5 5 5 5 6 6 6 6 7 7 7 7 8 8 8 8] ;

I have tried using reshape to accomplish the above however I cant get this output from it.

Your help would be appreciated,

KR,

KMT.

Answer 1

[David Fletcher]

B=[reshape(A(:,:,1)',1,16);reshape(A(:,:,2)',1,16)]

Answer 2

[Andrei Bobrov]

a = [1 2 3 4] ;
b = [5 6 7 8] ;
B = [repmat(a,1,4);repelem(b,4)];

or

reshape(permute(A,[2,1,3]),[],2)';