Robin wrote: > On Tue, Jun 2, 2009 at 11:36 AM, David Cournapeau <courn...@gmail.com> wrote: > >> Done in r7031 - correlate/PyArray_Correlate should be unchanged, and >> acorrelate/PyArray_Acorrelate implement the conventional definitions, >> > > I don't know if it's been discussed before but while people are > thinking about/changing correlate I thought I'd like to request as a > user a matlab style xcorr function (basically with the functionality > of the matlab version). > > I don't know if this is a deliberate emission, but it is often one of > the first things my colleagues try when I get them using Python, and > as far as I know there isn't really a good answer. There is xcorr in > pylab, but it isn't vectorised like xcorr from matlab... >
There is one in the talkbox scikit: http://github.com/cournape/talkbox/blob/202135a9d848931ebd036b97302f1e10d7488c63/scikits/talkbox/tools/correlations.py It uses the fft, and bonus point, the file is independent of the rest of toolbox. There is another version which uses direct implementation (this is faster if you need only a few lags, and it takes less memory too). David _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
