[R] B-spline/smooth.basis derivative matrices
a_shfets at mail.ru
Mon Mar 12 23:51:03 CET 2012
Thank you, vito for these functions: I've been able to look at the smoothing spline matrix and its derivatives that I constucted with functions "create.bspline.basis" and "smooth.basis"
Understanding from Hastie and Tishbirani that the S(lambda)-- the penalty matrix
25 февраля 2012, 15:11 от "vito.muggeo" <vito.muggeo at unipa.it>:
> dear s,
> If you are willing to use B-splines placing p knots, say, (rather than smoothing splines
> placing n knots), you could have a look to the functions splineDesign() or spline.des()
> (argument derivs) in the package "splines".
> On Fri, 24 Feb 2012 12:28:58 -0800 (PST), Vassily Shvets wrote
> > Hello,
> > I've noticed that SPLUS seems to have a function for evaluating derivative
> > matrices of splines. I've found the R function that evaluates matrices from
> > 'smooth.spline'; maybe someone has written something to do the same with smooth.basis?
> > regards,
> > s
> > ______________________________________________
> > R-help at r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> Open WebMail Project (http://openwebmail.org)
More information about the R-help