@Max - Thanks a lot for your help. I have already been using that website > as a reference, and it's incredibly helpful. I have also been experimenting > with tuneGrid already. My question was specifically if tuneGrid (or caret > in general) supports passing method parameters to the method functions from > each package other than those listed in the CARET documentation (e.g. I > would like to specify sampsize and nodesize for randomForest, and not just > mtry). > > Yes. A custom method is how you do that.
> Thanks, > > James > > > > > > > On Wed, Feb 13, 2013 at 1:07 PM, Max Kuhn <mxk...@gmail.com> wrote: > >> James, >> >> You really need to read the documentation. Almost every question that you >> have has been addressed in the existing material. For this one, there is a >> section on custom models here: >> >> http://caret.r-forge.r-project.org/training.html >> >> Max >> >> >> On Wed, Feb 13, 2013 at 9:58 AM, James Jong <ribonucle...@gmail.com>wrote: >> >>> The documentation for caret::train shows a list of parameters that one >>> can >>> tune for each method classification/regression method. For example, for >>> the method randomForest one can tune mtry in the call to train. But the >>> function call to train random forests in the original package has many >>> other parameters, e.g. sampsize, maxnodes, etc. >>> >>> Is there **any** way to access these parameters using train in caret? (Is >>> the function caret::createGrid limited to the list of parameters >>> specified >>> in the caret documentation, it's not super clear if the list of parameter >>> is for all the caret APIs). >>> >>> Thanks, >>> >>> James, >>> >>> [[alternative HTML version deleted]] >>> >>> ______________________________________________ >>> 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. >>> >> >> >> >> -- >> >> Max >> > > -- Max [[alternative HTML version deleted]] ______________________________________________ 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.
