I can reproduce the errors. I'll take a look. Thanks,
Max On Thu, Jul 12, 2012 at 5:24 AM, Dominik Bruhn <domi...@dbruhn.de> wrote: > I want to use the caret package and found out about the timingSamps > obtion to obtain the time which is needed to predict results. But, as > soon as I set a value for this option, the whole model generation fails. > Check this example: > > ------------------------- > library(caret) > > tc=trainControl(method='LGOCV', timingSamps=10) > tcWithout=trainControl(method='LGOCV') > > x=train(Volume~Girth+Height, method="lm", data=trees, trControl=tcWithout) > > x=train(Volume~Girth+Height, method="lm", data=trees, trControl=tc) > Error in eval(expr, envir, enclos) : object 'Girth' not found > Timing stopped at: 0 0 0.003 > ---------------------------- > > As you can see, the model generation works without the timingSamps > option but fails if it is specified. > > What am I doing wrong? > > My sessioninfo: > ------------------ > R version 2.15.0 (2012-03-30) > Platform: x86_64-pc-linux-gnu (64-bit) > > locale: > [1] LC_CTYPE=en_GB.UTF-8 LC_NUMERIC=C > [3] LC_TIME=en_GB.UTF-8 LC_COLLATE=en_GB.UTF-8 > [5] LC_MONETARY=en_GB.UTF-8 LC_MESSAGES=en_GB.UTF-8 > [7] LC_PAPER=C LC_NAME=C > [9] LC_ADDRESS=C LC_TELEPHONE=C > [11] LC_MEASUREMENT=en_GB.UTF-8 LC_IDENTIFICATION=C > > attached base packages: > [1] stats graphics grDevices utils datasets methods base > > other attached packages: > [1] MASS_7.3-18 caret_5.15-023 foreach_1.4.0 cluster_1.14.2 > reshape_0.8.4 > [6] plyr_1.7.1 lattice_0.20-6 > > loaded via a namespace (and not attached): > [1] codetools_0.2-8 compiler_2.15.0 grid_2.15.0 iterators_1.0.6 > [5] tools_2.15.0 > ------------------------- > > Thanks! > -- > Dominik Bruhn > mailto: domi...@dbruhn.de > -- 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.
