Tagged Questions
1
vote
2answers
606 views
Spline fitting in R - how to force passing two data points?
I am using "smooth.spline" in R. Here is a snippet from the documentation:
http://stat.ethz.ch/R-manual/R-patched/library/stats/html/smooth.spline.html
smooth.spline {stats} R Documentation
Fit a ...
4
votes
3answers
200 views
Curve smoothing in the presence of non-gaussian uncertainty
What options are available for smoothing 2-dimensional real data for which the the ordinate points are real intervals of the form
$(x_j , [y_{j0} , y_{j1}])$
In my case, the data is vague because of ...
5
votes
1answer
331 views
State-of-the-art in smoothing splines
What is the state-of-the-art in the efficient computation of smoothing splines?
The algorithm I see mentioned most often is that of Reinsch, dating back to 1967. As I understand it, the most ...
1
vote
1answer
101 views
Monte Carlo test for comparing curvature of binomial response surfaces from effective degrees of freedom of GCV-fitted splines
I would like to compare the curvature of two response surfaces, each of the form:
binomial ~ continuous variables1-5
I think it would be appropriate to use the effective degrees of freedom of a ...
4
votes
1answer
316 views
Constructing smoothing splines with cross-validation
Can someone provide me with a book or online reference on how to construct smoothing splines with cross-validation? I have a programming and undergraduate level mathematics background. I would also ...
