** High Priority ** Dear R users, I am new in the cubic smoothing spline issues, consequently my question is about the smooth.spline function in the modreg package : I would like to know if the value of *$lev is the eigen decomposition of the smoother matrix or only the diagonal values of the smoother matrix ? If second choice, how can I have the smoother matrix S defined by : fitted vector = S %*% vector to be smoothed ? Thanks in advance for all R users that could answer me Damien Berlemont Student in statistics in the University of Paris-X Damien.Berlemont at ccf.fr ****************************************** Ce message est strictement confidentiel. Son integrite n''est pas assuree sur Internet. Le contenu de ce message ne peut engager la responsabilite du Credit Commercial de France. Si vous n''etes pas destinataire du message, merci d''en avertir immediatement l''expediteur et de le detruire. This message is strictly confidential. Integrity is not guaranteed through Internet. The content of this message does not bind Credit commercial de France in any way. If you are not the intended recipient of the message, please notify the sender immediately and delete it. ****************************************** ****************************************** message a ete controle par antivirus. ****************************************** -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
On Fri, 12 May 2000, Damien BERLEMONT wrote:> ** High Priority ** > > Dear R users, > > I am new in the cubic smoothing spline issues, consequently my questionis about the smooth.spline function in the modreg package : I would like to know if the value of *$lev is the eigen decomposition of the smoother matrix or only the diagonal values of the smoother matrix ? If second choice, how can I have the smoother matrix S defined by : fitted vector = S %*% vector to be smoothed ?> > Thanks in advance for all R users that could answer meYou could answer it for yourself by looking at the help page(!): lev: leverages, the diagonal values of the smoother matrix. or at the code. You can of course find the smoother matrix by predicting some basis vectors, the absolutely standard technique in the smoothing field.> Damien Berlemont > Student in statistics in the University of Paris-X > Damien.Berlemont at ccf.fr >[ Nonsense about `This message is strictly confidential'' deleted. ] -- Brian D. Ripley, ripley at stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272860 (secr) Oxford OX1 3TG, UK Fax: +44 1865 272595 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._