[R] B-spline/smooth.basis derivative matrices

vito.muggeo vito.muggeo at unipa.it
Sat Feb 25 12:11:47 CET 2012

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
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