ndgrid on matrices without the use of cell arrays

Hi guys,

I need your help in solving the following problem:

Given a dxn matrix, do the following (preferably without the use of cells):

n is always even and d is also even.

Thanks in advance.

[James Tursa]

What is the general pattern? E.g., are the rows always split into 1x2 blocks, or are the rows split in half? Is n always even? You need to give us more information.

[jack]

I have updated the question.

The aim is very similar to the problem stated by the following link: http://www.mathworks.com/matlabcentral/answers/258365-ndgrid-on-cell-array-of-vectors

but i need your help in solving it for matrices.

Answer 1

[Andrei Bobrov]

m = size(A,1); % A - your array
b = reshape(A,m,[],2);
[ii,jj] = ndgrid(1:m);
out2 = [b(jj(:),:,1),b(ii(:),:,2)]

[jack]

Your suggestion is good but it is not fully correct, to correct it change only b to :

    b = reshape(A,m,[],size(A,2)/2);

and making the output of ndgrid a cell array.

[jack]

but how can i do it without cell arrays? i need a code that works for every even n and d = 2!!