[SciPy-dev] scipy.signal.signaltools: filtfilt calls missing function

Travis E. Oliphant oliphant@enthought....
Wed Nov 26 12:30:02 CST 2008

Eric Firing wrote:
> The filtfilt() function calls lfilter_zi, which is absent from scipy.  A 
> version of it is in the Cookbook: 
> http://www.scipy.org/Cookbook/FiltFilt.  It looks to me like a bit of 
> reworking would be in order before adding it to scipy; it is using matrices.
Thanks for the catch.   I've added the missing functionality to trunk.
> I hope this can be fixed before the 0.7 release.
> Is it essential that I create a ticket, or is this email sufficient?
The email is sufficient.   I've fixed the problem.  Thanks for the report.


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