Hi all, I am doing a projection pursuit regression using the ppr() function from modreg. I would also like to use predict.ppr(). However, I cannot find any information about it in the help files. There is a link to predict.ppr in the index for modreg, but that link is to the help for ppr(). Has predict.ppr() not been implemented? If not, does anyone have a suggestion as to how to implement predict.ppr() in R? Thanks Peter ------------------------------------------------- Peter Ho GradIFST Escola Superior de Biotecnologia Universidade Cat?lic Portuguesa Rua Dr. Ant?nio Bernardino de Almeida 4200 Porto Portugal -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- 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 _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
:predict.ppr
3 messages · Brian Ripley, Peter Ho
On Fri, 8 Jun 2001, Peter Ho wrote:
Hi all, I am doing a projection pursuit regression using the ppr() function from modreg. I would also like to use predict.ppr(). However, I cannot find any
I don't know what to say! You should be wanting to use the predict() generic function on your fit. If you had tried it, it would have worked. Also, there is an example of using predict on a ppr object in the main reference ....
information about it in the help files. There is a link to predict.ppr in the index for modreg, but that link is to the help for ppr().
Because methods should not be individually documented unless the differ from the generic.
Has predict.ppr() not been implemented?
Why do you think it appear in the function list
library(modreg) ls(2)
[1] "anova.loess" "ksmooth" [3] "loess" "loess.control" [5] "loess.smooth" "plot.ppr" [7] "pointwise" "ppr" [9] "ppr.default" "ppr.formula" [11] "predLoess" "predict.loess" [13] "predict.ppr" "predict.smooth.spline" [15] "predict.smooth.spline.fit" "print.loess" [17] "print.ppr" "print.smooth.spline" [19] "print.summary.loess" "print.summary.ppr" [21] "scatter.smooth" "simpleLoess" [23] "smooth.spline" "summary.loess" [25] "summary.ppr" "supsmu" ?
If not, does anyone have a suggestion as to how to implement predict.ppr() in R?
I do have a suggestion: learning the difference between generic functions and methods would help reduce your confusion.
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 _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
Prof Ripley,
On Fri, 8 Jun 2001, Peter Ho wrote:
Hi all, I am doing a projection pursuit regression using the ppr() function from modreg. I would also like to use predict.ppr(). However, I cannot find any
I don't know what to say! You should be wanting to use the predict() generic function on your fit. If you had tried it, it would have worked.
Thanks for pointing this out. Peter ------------------------------------------------- Peter Ho GradIFST Escola Superior de Biotecnologia Universidade Cat?lic Portuguesa Rua Dr. Ant?nio Bernardino de Almeida 4200 Porto Portugal -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- 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 _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._