Matlab Vectorization using Multiple Columns from an Array

Question

I'm trying to vectorize a bit of Matlab code that requires input from two adjacent members of an array. Essentially:

x=1:10;
for i=1:9
    y(i) = x(i)+x(i+1);
end

Is there a way to vectorize this code so that I don't need to use the for loop?

Oliver Amundsen · Accepted Answer · 2012-12-09 22:16:02Z

3

Do I understand this right? Is this what you need?

y = x(1:n-1) + x(2:n);

?

answered Dec 9, 2012 at 22:16

Oliver Amundsen

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1 Comment

I tried that earlier, but I guess I must have made a typo, because that seems to work. Thanks a ton!