[SciPy-dev] Status of sandbox.spline and my other code.
Tue Apr 8 03:56:24 CDT 2008
---------- Forwarded message ----------
From: John Travers <firstname.lastname@example.org>
Date: Tue, Apr 8, 2008 at 9:55 AM
Subject: Re: [SciPy-dev] Status of sandbox.spline and my other code.
To: Jarrod Millman <email@example.com>
On Mon, Apr 7, 2008 at 11:56 AM, Jarrod Millman <firstname.lastname@example.org> wrote:
> Hey John,
> I am hosting a NumPy/SciPy sprint this week at UC Berkeley and among
> other things am hoping to make some progress on cleaning up the
> various interpolation/spline code in SciPy as well as continue
> removing the scipy sandbox. Do you have any more plans for your
> sandbox.spline code? Any thoughts on where it should go or what still
> needs to be done?
The code in sandbox.spline should be a complete replacement for the
code in scipy.interpolate.fitpack and fitpack2 including the f2py
wrappers of the fitpack fortran code (i.e. replacing the hand crafted
c wrappers). Apart from using only f2py, a number of improvements were
made to the docstrings and error checking and some bugs fixed and
quite a few unit tests added.
Originally I was advocating that we have a separate spline package
with the fitpack stuff and a separate interpolate package that can
utilise either the spline or rbf of delaunay etc. packages as these
can all be used for more than just interpolation. This didn't seem to
gain any traction on the mailing list, so I left it. I would still
advocate this, but recognise the reasons that people might not want to
expand the number of packages so much.
I left this code about a year ago and then got bogged down with my
thesis work which I finished a few weeks back. If they
code/improvements might be used then I can find the time this week to
check it is all working and still up to date. Then I could either
supply a set of patches against the main interpolate code which could
be more easily understood, or provide a mercurial/bzr branch for
someone else to merge from (if the bzr/mercurial stuff is setup yet).
Let me know if that might be useful. There are also further things
that were on my todo list for interpolate, including using
RectBivariateSPline where possible as it is much better for
interpolation than the currently used surfit. (I have a unit test
which segfaults the current code, but not teh RectBivariateSpline
Hope this helps,
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