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Changing two variables in a for loop

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KatherineS
KatherineS on 13 Jun 2019
Commented: Alex Mcaulley on 13 Jun 2019
Hi,
I would like to change two variables in a for loop. I have a matrix A and would like to create a new matrix that looks like:
A(1,1) 0 0 0 A(1,2) 0 0 0 A(1,3) ...
A(2,1) 0 0 0 A(2,2) 0 0 0 A(2,3) ....
Where the new matrix is 4 times as many coloums as the original matrix and the same number of rows (in the end 139 x 3774).
What is the best way to do this?
Thanks in advance for your help.

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Answers (1)

Alex Mcaulley
Alex Mcaulley on 13 Jun 2019
Try this:
B = zeros(size(A,1),4*size(A,2));
B(:,1:4:end) = A;

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Alex Mcaulley
Alex Mcaulley on 13 Jun 2019
Please, accept the answer to close the question

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