On 25.08.2012 02:12, Reza Salimi-Khorshidi wrote:
Dear Uwe, I appreciate that if you let me know why, when using the attached file, the following script (two lines) doesn't work once in 10s of times. Best, Reza svm.pol4<- ksvm(class.labs~ ., data= train.data, prob.model= T, scale= T, kernel= "polydot") svm.pol.prd4<- predict(svm.pol4, train.data, type= "probabilities")[,2]
Some randomness is involved, and when you get an unfortunate subsample (e.g. if in the internal cross-validation one class is not selected at all) it won't work anymore.
Best, Uwe Ligges ______________________________________________ R-help@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.
