Command to reshape matrix diagonally
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fr_sk
am 8 Apr. 2016
Kommentiert: Andrei Bobrov
am 8 Apr. 2016
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!
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Andrei Bobrov
am 8 Apr. 2016
Bearbeitet: Andrei Bobrov
am 8 Apr. 2016
% 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{:}];
2 Kommentare
Andrei Bobrov
am 8 Apr. 2016
rewrite on separate commands:
[~,n] = size(X);
a = reshape(X',n,m2,[]);
b = permute(a,[1 3 2]);
out = reshape(b,[],m2)';
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