xcorr - per matrix column

2017 6 20
1 个回答
更新时间：2017 6 20
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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?

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回答（1 个）

KSSV
KSSV 2017-6-20

0 个投票

A = rand(700,1500) ;
C = zeros([],[]) ;
for i = 1:size(A,1)
C(:,i) = xcorr(A(:,i)) ;
end

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omri r
omri r 2017-6-20
Thanks, I meant without a for loop. It would take to much time.
KSSV
KSSV 2017-6-20
Have you tried that? That dimension matrix not taking much time.

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omri r
omri r
2017-6-20

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KSSV
KSSV
2017-6-20

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