[R] tuning SVM's

2004-12-01 Thread David Meyer
Stephen: Your calls to best.svm() do not tune anything unless you specify the parameter ranges (see the examples on the help page). Your calls are just using the defaults which are very unlikely to yield models with good performance. [I think some day, I will have to remove the defaults in

[R] tuning SVM's

2004-11-30 Thread stephenc
Hi I am doing this sort of thing: POLY: obj = best.tune(svm, similarity ~., data = training, kernel = polynomial) summary(obj) Call: best.tune(svm, similarity ~ ., data = training, kernel = polynomial) Parameters: SVM-Type: eps-regression SVM-Kernel: polynomial