Hi, I used loess( ) to build a model that has 5 predictors using R of Wndows version. And it tells me that there is an unknown error. If I decrease the number of predictors, then there will be no error. My questions are: 1. Can loess( ) handle more than 4 predictors. 2. If it can not, is there any other smoothing regression technique that can handle more predictors. Any comment will be very helpful to me. Thank you in advance! Edwin -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- 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 Sat, 14 Apr 2001, Edwin Guo wrote:> Hi, > I used loess( ) to build a model that has 5 predictors using R of Wndows > > version. And it tells me that there is an unknown error. If I decrease > the number of predictors, then there will be no error. My questions are: > > 1. Can loess( ) handle more than 4 predictors. > 2. If it can not, is there any other smoothing regression technique that > > can handle more predictors. > > Any comment will be very helpful to me. Thank you in advance!Well, possibly you are short of points: you need *many* points in 4D to do non-parametric smoothing (say billions). You will need send us an example and the exact output to help you, though! -- 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 _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
Date: Sat, 14 Apr 2001 11:59:29 -0400 From: Edwin Guo <guo at ele.uri.edu> X-Mailer: Mozilla 4.7 [en]C-CCK-MCD EBM-Compaq (Win95; U) X-Accept-Language: en MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-r-help at stat.math.ethz.ch Precedence: SfS-bulk Hi, I used loess( ) to build a model that has 5 predictors using R of Wndows version. And it tells me that there is an unknown error. If I decrease the number of predictors, then there will be no error. My questions are: 1. Can loess( ) handle more than 4 predictors. 2. If it can not, is there any other smoothing regression technique that can handle more predictors. Any comment will be very helpful to me. Thank you in advance! Edwin -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- 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 _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._ For an alternative you may use the gss package. -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- 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 _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._