Comments (3)
Hi Timoteo,
Cool that you have found a use case for SPLINTER. Which programming language do you use?
We do not have any example code for automatic selection of the smoothing parameter. However, there should not be any limitations preventing you from using AIC or GCV for this. If I were to implement it, I would do it in Python first. After validating the code, I would reimplement it in C++ if needed. We would be happy to merge your implementation so that others can use it.
Please note that the develop
branch is quite far ahead of the master
branch. Release v3 was compiled from the master
branch. The next release (v4) will be compiled from the develop
branch. If you are able, I suggest that you compile from the develop
branch.
Best regards,
Bjarne
from splinter.
Thank you Bjarne for the fast response,
yes I am aware of that and I am already using the version contained inside the develop branch. I use both c++ and python, and thank for the useful suggestion however I would like to reconstruct the Hat matrix first and at the moment I am not really aware on how to do that in python is there any function to get it from python?
from splinter.
Good. There is currently no function for retrieving the "Hat matrix" in C++ or Python. However, the necessary computations can be found in src/bspline_utils.cpp
. So, it looks like some extra work is required to implement GCV. Perhaps it is better to start with AIC since it should be pretty straight-forward to implement?
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Related Issues (20)
- Greater than bivariate B-splines HOT 4
- Faster bspline evaluation using vectors? HOT 3
- One bug in PSPLINE HOT 1
- What is the structure of the PyPI splinter package? HOT 1
- Number of spans in U and V direction in resulting surface HOT 1
- How to obtain libsplinter-4-0.dll in Win10 ? HOT 1
- P-Spline: determine the "best" smoothing parameter HOT 2
- Potential memory leak HOT 4
- Using library in c# code HOT 2
- Knot placement under knot multiplicity HOT 1
- How to plot the b_spline curve in x-y plane? HOT 1
- not-a-knot end conditions
- Protected constructor BSpline() results in error C2248 - cannot access protected member HOT 8
- Penalized B-spline dies while building HOT 7
- Very slow build of the bspline object HOT 20
- Run C++ sample code all night and can not return back result HOT 1
- In python spline.eval_jacobian(p) returns only the first column of the jacobian HOT 2
- Comparisons to some other standard spline packages? HOT 1
- C++ interface example outputs "double free or corruption (out)"
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