> > 1. can I measure de R-squared value between the predicted(by the model) and > real (observed) values.? > 2. Measure the RMSE error . >
There is a function in the caret package called postResample that will do that (even if you aren't using resampling). As has been previously noted on this list, there are a number of formulas for R-squared. This function uses the square of the correlation between the observed and predicted. The next version of caret will offer a choice of formulas. -- Max ______________________________________________ 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.
