Changing two variables in a for loop

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.

Answer 1

[Alex Mcaulley]

Try this:

B = zeros(size(A,1),4*size(A,2));
B(:,1:4:end) = A;

[KatherineS]

Thanks it worked!

[Alex Mcaulley]

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