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Re: autocorrelation
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From: |
Francesco Potorti` |
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Subject: |
Re: autocorrelation |
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Date: |
Tue, 19 Dec 2006 08:42:04 +0100 |
>> What is the reason why the autocorrelation (autocor.m) is
>> computed with a for loop rather than using fft?
>
>xcorr in the signal package at octave-forge uses fft. It
>does it directly, though, so it is not as clean as what
>you wrote.
It is also different, in that it computes cross correlations between
columns. I could write a replacement for autocor.m that uses direct
sums or fftconv depending on the length and number of requested vectors
to convolve. Is there any interest into this?
--
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