Re: [R] to determine the variable importance in svm

2010-10-27 Thread mxkuhn
> is ipred:errorest method is good enough for validating (or cross check) my > svm result? Yes, if you know what values of the tuning parameters to use, but I don't know why it was failing. Max __ R-help@r-project.org mailing list https://stat.ethz.c

Re: [R] to determine the variable importance in svm

2010-10-27 Thread Neeti
thank you so much for your suggestion, i will use caret package is ipred:errorest method is good enough for validating (or cross check) my svm result? -- View this message in context: http://r.789695.n4.nabble.com/to-determine-the-variable-importance-in-svm-tp3013817p3015172.html Sent from the

Re: [R] to determine the variable importance in svm

2010-10-26 Thread Max Kuhn
> The caret package has answers to all your questions. >> 1) How to obtain a variable (attribute) importance using >> e1071:SVM (or other >> svm methods)? I haven't implemented a model-specific method for variables importance for SVM models. I know of one package (svmpath) that will return the re

Re: [R] to determine the variable importance in svm

2010-10-26 Thread Liaw, Andy
The caret package has answers to all your questions. > -Original Message- > From: r-help-boun...@r-project.org > [mailto:r-help-boun...@r-project.org] On Behalf Of Neeti > Sent: Tuesday, October 26, 2010 10:42 AM > To: r-help@r-project.org > Subject: [R] to dete

[R] to determine the variable importance in svm

2010-10-26 Thread Neeti
hii everyone!! i have two questions: 1) How to obtain a variable (attribute) importance using e1071:SVM (or other svm methods)? 2) how to validate the results of svm? currently i am using the following code to determine the error. library(ipred) for(i in 1:20) error.model1[i]<- errorest(Spec