Split sample validation is highly unstable with your sample size. The rms package can help with bootstrapping or cross-validation, assuming you have all modeling steps repreated for each resample.
Frank ----- Frank Harrell Department of Biostatistics, Vanderbilt University -- View this message in context: http://r.789695.n4.nabble.com/Validation-Training-test-data-tp2718523p2718905.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
