Hi there In rpart, one can get a graph of R-squared (using rsq.rpart (fit)), in which the x axis is the number of splits, and which contains two lines - an "apparent" R squared and an Rsquared based on the x error.
I would like to caclulate these R-squared values, but cannot work out from the output how it is done. Is there any way to access the values that underpin this graph? Alternatively, is there any way to calculate them from the summary data? Thanks in advance, Andy Park _________________________________________________________________ [[replacing trailing spam]] ______________________________________________ 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.
