[R] SVM question

Liaw, Andy andy_liaw at merck.com
Mon Mar 22 13:59:57 CET 2004


If you really want such features, you have two options:

-  Modify the C and R code yourself.
-  Send request to the author of libsvm, Chih-Jen Lin.

Andy

> From: Frank Gerrit Zoellner
> 
> On Mon, Mar 22, 2004 at 01:14:06PM +0100, David Meyer wrote:
> > >I have a question concerning the svm in the e1071 package.
> > >I trained the svm by a set of samples, doing a 10 cross validation.
> > >The summary function then prints out the total accuracy and single
> > >accuracies, >works fine.
> > 
> > >My question is then: Is it possible to get classification 
> results per
> > >cross >validation out the svm? I mean e.g. numbers about the true
> > >positives ,fp,fn,tf ?
> > 
> > No, because the accuracies are not computed using a 
> confusion matrix.
> > The computation is internally done in C.
> 
> So there is no way to recieve a list of the examples and its 
> assigned class which has been used for testing the svm during 
> the cross validation?  
> 
> Yours,
> 
> -- 
> Frank G. Zoellner
> AG Angewandte Informatik
> Technische Fakult"at
> Universit"at Bielefeld
> phone: +49(0)521-106-2951
> fax:   +49(0)521-106-2992
> email: fzoellne at techfak.uni-bielefeld.de
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide! 
> http://www.R-project.org/posting-guide.html
> 
> 


------------------------------------------------------------------------------
Notice:  This e-mail message, together with any attachments,...{{dropped}}




More information about the R-help mailing list