[R] installation of package "randomForest" failed

Uwe Ligges ligges at statistik.uni-dortmund.de
Tue Apr 18 21:50:57 CEST 2006

Ruth Meili wrote:

> Hello
> I'd like to try out some functions in the package randomForest. Therefore, 
> I did install this package. However, it is not possible to load the 
> library, although I have R-Version 2.1.1 (i.e. later than 2.0.0). The 
> commands I used and the Answers/Error from R is as follows:
>  > 
> install.packages("C://Programme//R//rw2011//library//randomForest_4.5-16.zip", 
> lib="C://Programme//R//rw2011//library//randomForest",repos = NULL)
> package 'randomForest' successfully unpacked and MD5 sums checked
> updating HTML package descriptions
>  > library(randomForest)
> Fehler in library(randomForest) : 'randomForest' ist kein gültiges Paket -- 
> vor 2.0.0 installiert?

Where did you get the zip file from?

Most easily, you can install a package by simply saying
if you have an active internet connection.

Anyway, you might want to upgrade your version of R to R-2.2.1 or even 
R-2.3.0 beta (to be released next monday) and help testing.

Uwe Ligges

> I run in this problem for the first time. Until now, I used to install new 
> packages by copying the*.zip-file to the "library"-directory in the 
> rw2011-directory. This seam not to work anymore. So I tried using the 
> function install.package(), but I did not success.
> Does anybody know the Problem? I did not find any hints in the NEWS.
> Thanks anyway.
> Ruth
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