[SciPy-Dev] Akima Interpolation

Pauli Virtanen pav@iki...
Fri Aug 30 11:15:10 CDT 2013


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29.08.2013 19:01, Andreas Hilboll kirjoitti:
> I'd like to have Akima interpolation in scipy.interpolate, as I
> couldn't find any.
> 
> 1.) Did I miss something and there actually *is* an Akima
> interpolation in scipy? 2.) Is there interest in having Akima
> interpolation in Scipy? 3.) Does anyone have a good recommendation
> which implementation I should consider for pulling into Scipy?

1) I don't think so, unless pchip is related.

2) Perhaps. Is it useful?

3) No idea.

One thing to look out: based on a quick look, Akima interpolation is a
form of spline interpolation, so it is probably possible to represent
the result as a B-spline. If so, FITPACK's spline representation
should be used, i.e., the same (t, c, k) format as in splrep.

This allows reusing `splev` for evaluating the spline values, which
will make life easier later on when we clean up scipy.interpolate.

	Pauli
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