MATLAB: Command to reshape matrix diagonally

columnmatrixreshape

Hi, i'd like to transform
X =  1   100    40
     2   107    30
     3    90    50
     4   120    60
into
Y =  1   100    40     3    90    50
     2   107    30     4   120    60
I thought
Y = reshape(X,2,6)
would do the trick but it didn't give me the matrix I was looking for.
Any quick ideas will be appreciated.
Thanks!

Best Answer

% X - array with size [5541888 x 7]
% m2 - number of rows in second array, m2 = 1536
[~,n] = size(X);
out = reshape(permute(reshape(X',n,m2,[]),[1 3 2]),[],m2)';
or
[m,n] = size(X);
a = mat2cell(X,m2*ones(m/m2,1),n);
out = [a{:}];
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