csaps

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questions about AutoSmoothingResult

4

To whom it may concern, Sorry I'm using a ticket to ask a question, but I couldn't see any other way to contact y'all. This package looks VERY interesting to...

Bhare8972

csaps.CubicSmoothingSpline does not perform natural boundary condition extrapolation correctly

2

csaps.CubicSmoothingSpline purports to perform extrapolation using the "natural" boundary condition. From https://github.com/espdev/csaps/blob/master/docs/formulation.rst: "csaps spline is cubic only and it has natural boundary condition type." This means the first derivative should...

shusheer

csaps.CubicSmoothingSpline provides incorrect derivatives under certain circumstances

2

Certain arrangements of smoothing intensity, weights and xdata, in particular irregularly spaced data where some xvalues are rather close together, causes CubicSmoothingSpline to produce a first derivative that is not...

shusheer

csaps.CubicSmoothingSpline does not handle periodic functions correctly

9

csaps.CubicSmoothingSpline purports to support periodic functions, but does not implement this correctly. I believe this is because it is a *smoothing* spline, which means that there are far more knots...

shusheer

Bumps [pillow](https://github.com/python-pillow/Pillow) from 10.1.0 to 10.2.0. Release notes Sourced from pillow's releases. 10.2.0 https://pillow.readthedocs.io/en/stable/releasenotes/10.2.0.html Changes Add keep_rgb option when saving JPEG to prevent conversion of RGB colorspace #7553 [@​bgilbert] Trim...

dependabot[bot]

Spline from auto-computed smooth with normalizedsmooth=True doesn't match using that smooth value directly

1

Hi, thanks for this package. I stumbled across some behavior I didn't expect. In the following code, I'm computing a smoothing factor automatically with `normalizedsmooth=True`. If I then use the...

ryan-feeley

Add optional GCV calculation

4

This commit adds support for optionally calculating the Generalized Cross Validation criterion inline and making it available as a property of the SplinePPForm object. @espdev I tried to minimize the...

ZeroCool2u

Interpolate on irregular grid

7

Hi, as far as I understand, CSAPS is able to work with univariate, multivariate (both depending x being 1dimensional) and ND-gridded data. In my use case, I have an irregular...

sroener

Issue with the smooth parameter.

3

What the csaps function looks like without smooth parameter: ```from csaps import csaps spline = csaps(x_points, y_points) plt.plot(x, fit) plt.scatter(x_points, y_points) plt.show() ```  What the csaps function looks like...

lucassherbrook

Is there an easy way to access the number of parameters and degrees of freedom, so one could calculate the GCV?

4

I'm interested in optimizing the smoothing parameter using the [GCV (page 244 7.52)](https://hastie.su.domains/ElemStatLearn/printings/ESLII_print12_toc.pdf). Oftentimes, this requires the number of effective number of parameters and degrees of freedom for the generated...

ZeroCool2u