MATLAB: How to reshape this matrix

reshape

Currently I have 3 dimensional matrix of size (2,3,3)
A(:,:,1) =
     1     2     3
     4     5     6
A(:,:,2) =
     7     8     9
    10    11    12
A(:,:,3) =
    13    14    15
    16    17    18
I would like to reshape it into [6 3] matrix so that it will become
A =
     1     2     3
     4     5     6
     7     8     9
    10    11    12
    13    14    15
    16    17    18
I try to use reshape(A,[6 3]); But it return the wrong matrix
Is there any quick way to do this?

Best Answer

Test matrix
 A = rand(2,3,3);
Solution #1
 D = reshape(permute(A, [1 3 2]), [6 3])
Solution #2
 B = mat2cell(A, 2, 3, [1 1 1]); % slice into 3 cells (along dim 3)
 C = squeeze(B); % flatten from dim 3 to dim 1
 D = vertcat(C{:}); % vertically append the three matrices
Related Question