Documentation helps are always welcome. Please make sure to advertise widely, though, that the new Polynomial class changes the ordering convention of the coefficients away from the Matlab standard.
I think this will be a point of confusion unless it is carefully documented. It's also why poly1d can't disappear (even though it would be nice to make it just a wrapper on top of the other Polynomial classes). -Travis On May 20, 2012, at 10:53 AM, Andreas Hilboll wrote: >> On Sun, May 20, 2012 at 9:37 AM, Charles R Harris >> <charlesr.har...@gmail.com <mailto:charlesr.har...@gmail.com>> wrote: >> >> >> >> On Sun, May 20, 2012 at 9:09 AM, Andreas Hilboll <li...@hilboll.de >> <mailto:li...@hilboll.de>> wrote: >> >> Hi, >> >> I just noticed that there's two polyfit functions, one in >> numpy.lib.polynomial, and one in numpy.polynomial. What's the >> reason for >> this? The calling signatures aren't identical (the numpy.polynomial >> version supports weights), and I couldn't find a notice on why two >> versions exist. >> >> >> There are two different polynomial objects, Polynomial and poly1d. >> The Polynomial object is part of a newer group that also contains >> Lengendre, Chebyshev, etc., and doesn't have some of the problems >> that poly1d has. Poly1d is an older implementation. > > I think it would be beneficial for the user if this fact was noted > somewhere in the docstring of the Poly1d implementation. Especially > since numpy.polyfit is pointing to that old implementation. When I saw > the polyfit function in the numpy namespace, I didn't bother checking if > there's anything more sophisticated. > > I could add the appropriate links in the "see also" sections of the > Poly1d docstrings, if you guys agree. > >> Oh, and the polyfit function in polynomial.polynomial isn't meant to be >> used directly, it is mostly there to support the fit class function of >> Polynomial. See the documentation here <http://preview.tinyurl.com/8289gfs>. > > Ah, okay. Thanks for that. > > Cheers, > Andreas. > _______________________________________________ > NumPy-Discussion mailing list > NumPy-Discussion@scipy.org > http://mail.scipy.org/mailman/listinfo/numpy-discussion _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
