[SciPy-user] Correlate Times?
Fri Jan 18 02:10:41 CST 2008
> scipy.signal.correlate is a N-d correlation algorithm as has been
> noted. It is going to be slower for 1-d arrays. Now, there is nothing
> wrong with checking for that case and calling the 1-d version, it's just
> never been done (probably because people who only need 1-d correlation
> are already just using numpy.correlate).
It did not check the code now, but aren't all this correlation method
calculated in time domain ?
I was quite confused some months ago when trying to calculate
correlation of bigger data and then implemented an FFT version.
So I think it would be useful if (at least in scipy.signal) it
automatically calculates the correlation in frequency domain with bigger
data - AFAIK that's also the way it is done in matlab ...
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