xcorr - per matrix column

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omri r
omri r on 20 Jun 2017
Commented: KSSV on 20 Jun 2017
Hi,
I'm trying to achieve something with xcorr and cannot succeed.
Would appreciate any help.
I have quite a big matrix (700,1500).
I would like to get the autocorrelation per matrix column. I tried to use the xcorr, but it gives me the x-correlation also to other columns.
How would I autocorrelation per matrix column?

Answers (1)

KSSV
KSSV on 20 Jun 2017
A = rand(700,1500) ;
C = zeros([],[]) ;
for i = 1:size(A,1)
C(:,i) = xcorr(A(:,i)) ;
end
  2 Comments
omri r
omri r on 20 Jun 2017
Thanks, I meant without a for loop. It would take to much time.
KSSV
KSSV on 20 Jun 2017
Have you tried that? That dimension matrix not taking much time.

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