Hi Mark,

The docs you linked reference https://epubs.siam.org/doi/10.1137/0720057 which is gated, so only an impression: this seems to construct a shape-preserving piecewise quadratic interpolant. We have two shape-preserving cubic interpolants, PCHIP and Akima. Do you have an overview of how this one compares to them?

Off the cuff, I guess we can add a shape-preserving quadratic, too. This should be based on either BSpline or PPoly, depending on the basis the construction is in.
(My impression is that it's the latter in the R package).
The API should mirror that of Akima1DInterpolator.




пт, 10 мая 2019 г., 9:45 Mark Mikofski <mikofski@berkeley.edu>:
Hi All,

Sorry for this unresearched and inexperienced question.

Does anyone have any experience with the "Schumaker quadratic spline" for 1-D interpolation? Is it similar enough to the BSpline already in SciPy?

I have some source code that I can contribute if there's interest.

As far as references, a google search turned up an R function:
*  https://cran.r-project.org/web/packages/schumaker/vignettes/schumaker.html  

--
Mark Mikofski, PhD (2005)
Fiat Lux
_______________________________________________
SciPy-Dev mailing list
SciPy-Dev@python.org
https://mail.python.org/mailman/listinfo/scipy-dev