> Could anyone advise me how can I implement classification and > regression tree analyses for a circular response (angles)?
Rpart allows for user-defined splitting rules. You need to define a function which is given y and an ordered x, and returns the 'goodness of split' for each split point. You need to decide how to define "goodness". Terry Therneau ______________________________________________ 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.