ROC from R-SVM?

The objects functions for kernel methods are unrelated to the area
under the ROC curve. However, you can try to choose the cost and
kernel parameters to maximize the ROC AUC.

See the caret package, specifically the train function.

Max

*Hi,

*Does anyone know how can I show an *ROC curve for R-SVM*? I understand in
R-SVM we are not optimizing over SVM cost parameter. Any example ROC for
R-SVM code or guidance can be really useful.

Thanks, Angel.

? ? ? ?[[alternative HTML version deleted]]

______________________________________________
R-help at r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Max

In addition's to Max's suggestion about caret, look at ROCR which visualizes ROC charts for any binary classifier.  I have an example of e1071::SVN and ROCR here

https://heuristically.wordpress.com/2009/12/23/compare-performance-machine-learning-classifiers-r/



-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Angel Russo
Sent: Monday, February 21, 2011 3:34 PM
To: r-help at r-project.org
Subject: [R] ROC from R-SVM?

*Hi,

*Does anyone know how can I show an *ROC curve for R-SVM*? I understand in
R-SVM we are not optimizing over SVM cost parameter. Any example ROC for
R-SVM code or guidance can be really useful.

Thanks, Angel.

An embedded and charset-unspecified text was scrubbed...
Name: not available
URL: <https://stat.ethz.ch/pipermail/r-help/attachments/20110222/24331b26/attachment.pl>