On Dec 2, 7:12 pm, sturlamolden <sturlamol...@yahoo.no> wrote: > For two 1D ndarrays, the cross-correlation is > > from numpy.fft import rfft, irfft > from numpy import fliplr > > xcorr = lambda x,y : irfft(rfft(x)*rfft(fliplr(y))) > > Normalize as you wish, and preferably pad with zeros before invoking > xcorr.
Thanks, though I'd like to do this longer hand than the built in functions! Great to approximate it though. -- http://mail.python.org/mailman/listinfo/python-list
