[R] randomForest Tutorial

[Jim Porzak]

Dirk,

Check out Andy Liaw/Mat Wiener's article in RNews 2002-3
www.r-project.org/doc/Rnews/Rnews_2002-3.pdf

Also my decks at www.porzak.com/JimArchive :
1. http://www.porzak.com/JimArchive/JimPorzak_CIwithR_useR2006_tutorial.pdf
2nd part is on randomForest
2. http://www.porzak.com/JimArchive/JimPorzak_RFwithR_DMAAC_Jan07_webinar.pdf
is all on randomForest

The latter two focus on the use of randomForest in marketing & on the
binary response problem

For the variable selection problem you mention, check out Ramon
Diaz-Uriate's package varSelRF on your local CRAN.

HTH,
Jim Porzak
Responsys, Inc.
San Francisco, CA
http://www.linkedin.com/in/jimporzak

On Tue, Jul 22, 2008 at 4:58 AM, Dirk Nemitz <dirk.nemitz at gmail.com> wrote:
>
> I am new to R  and I'd like to use the randomForest package for my thesis
> (identifying important variables for more detailed analysis with other
> software). I have found extremely well written and helpful information on
>  the usage of R.
>
> Unfortunately it seems to be very difficult to find similarly detailed
> tutorials for randomForest, and I just can't get it work with the
> information on
> http://rss.acs.unt.edu/Rdoc/library/randomForest/html/randomForest.html
>
> Can anybody give me a hint where to find a more detailed tutorial? I am
> especially interested in preparation of data to use with randomForest (how
> to structure the csv-file) and which information is mandatory for the
> package to work. Maybe someone has a simple copy-paste example to share and
> experiment?
>
> Thank you for your attention,
>
> Dirk
>
> --
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