I need a loop which puts every (j,k) element of every matrix in different columns.

a = [1 2 ;3 4];     % This are my matrices 
b = [5 6 ;7 8]

% I need a loop which puts every (j,k) element-
% of every matrix in different columns. It means i have 4 colums-
%  and each have 2 rows . Finaly it should look 
% like this:

[1;5] ,[3;7], [2;6], [4;8] 

PS. : It has to be an loop.

Thanks very much!

[dpb]

So, this sounds, looks, and smells like homework... :)

What have you tried so far?

[Rik]

Why does it have to be a loop? Is this homework?

[Sain Cloud]

Yeah it's one of my university projects...

I've simplified the Problem.. There are actually much more matrices and each matrix represents an image with pixels.

and this ist what i tried so far:

a = [1 2 ;3 4]; 
b = [5 6 ;7 8];
v=zeros(2,4);
o = {a,b}
 for i= 1:2
   for j=1:2
       for k=1:2
             v(j,k) = o{1,i}(j,k)                    %  I thing the problem is here..
        end
    end
end    

Answer 1

[Jan]

What about:

d = cat(3, O{:});
d = permute(d, [3,1,2])

Now you have the wanted columns as first index.

[Sain Cloud]

Thaaaaaanks a lot!!!!