Asked by Rica
on 7 Dec 2012

Hi!

is it possible in matlab to change coluns:

A=[a1 a2 a3 a4.......a2250],a1...a2250 are arrays oth size(30*1).

i want to get this matrix B=[a1 a75 a150.... a2 a76....a3 a77..... ]. that means i have a step of 74

i wish you could help thank you

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Answer by Andrei Bobrov
on 7 Dec 2012

Edited by Andrei Bobrov
on 7 Dec 2012

B = reshape(permute(reshape(A,size(A,1),75,[]),[1 3 2]),size(A,1),[]);

or

s = size(A,2); B = A(:,bsxfun(@plus,1:75:s,(0:(s/75-1))')');

or

B = A(:,reshepe(1:size(A,2),75,[])');

Answer by Muruganandham Subramanian
on 7 Dec 2012

Edited by Muruganandham Subramanian
on 7 Dec 2012

a=1:2250; d=reshape(a,[75 30]);

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## 1 Comment

## Muruganandham Subramanian (view profile)

Direct link to this comment:http://www.mathworks.com/matlabcentral/answers/55991#comment_115892

if you step size is 74..the matrix will be B=[a1 a75 a149 a223...] like this only.. check is your question is right?