> x <- train[,c( 2:18, 20:21, 24, 27:31)]
> y <- train$out
>
> svm.pr <- svm(x, y, probability = TRUE, method="C-classification",
kernel="radial", cost=bestc, gamma=bestg, cross=10)
>
> pred <- predict(svm.pr, valid[,c( 2:18, 20:21, 24, 27:31)],
decision.values = TRUE, probability = TRUE)
> attr(pred, "decision.values")[1:4,]
16 23 43 52
1.08157648 0.51241842 0.06234319 1.20656580
> attr(pred, "probabilities")[1:4,]
NULL
HI, Dear David and R community,
I am trying to print out the probabilities and set a threshold for make ROC
curve. I dont know why it showed NULL for the probabilities.
y<-train$out, is consisting of 0 and 1 binary values.
Can you help me with this?
Thanks so much!
--
Sincerely,
Changbin
--
[[alternative HTML version deleted]]
______________________________________________
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.
