MATLAB: How to append “specific columns” in an array

permutereshape

hello ,
i tried so many combinations of codes using reshape and permute function but i couldn't get the desired output
suppose my array looks like
0   0
0   0
1   1
0  1
there are 2 columns and i want to take 1st column and copy it in 2nd and 3rd column , but i want to append it , i dont want to overwrite existing columns
so as a result i want 6 columns
0  0  0  0  0  0
0  0  0  0  0  0
1  1  1  1  1  1
0  0  0  1  1  1
i tried 2 clear my problem …. Can AnyOne Help With This Please??
I am Looking for Generalized code that can work for every array

Best Answer

Pooja, use
 B = reshape(repmat(A,3,1),length(A(:,1)),[])
assuming the first column is (supposed to be, typo?) equal to the second one in the 12-column matrix.
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