[R] My_first_R_package: almost there
Friedrich Leisch
Friedrich.Leisch at ci.tuwien.ac.at
Tue Jun 26 14:17:52 CEST 2001
>>>>> On Tue, 26 Jun 2001 14:10:00 +0200 (MET DST),
>>>>> Agustin Lobo (AL) wrote:
> Well, thanks to you all
> I've been able to install my first
> little package. I've dumped
> some of my Splus(PC) functions
> to an ascii file (*.R), created
> the directory structure and the
> DESCRIPTION and INDEX files. Then
> I checked and installed with:
> R CMD INSTALL -l ~/.R/library Sutilpangea
This is not a good idea, because the .R directory is a *temporary*
directory that R uses (on unix), and basically is created newly every
time you do help.start(), so your package will get deleted if you
install it there.
A typical place for private packages would be $HOME/lib/R but of
course you're free to use any place you like (except .R :-)
> because I found that I have an .R directory
> in my home where a subdirectory .R/library
> has links to where the packages really are
> (/usr/lib/R/library). Therefore, I decided
> to keep my own packages in .R/library
> while the CRAN packages really stay in
> /usr/lib/R/library.
> Now the only problem is that, by default, R
> searches packages in /usr/lib/R/library
> because of the value of R_HOME:
>> system ("echo $R_HOME")
> /usr/lib/R
> It would be better if R would
> search packages in my .R/library
> directory, where R would find both my packages
> and the links for the CRAN packages.
> How can I change the deafault searching
> path for the packages? (I know
> I can always do library(xxx, lib.loc="/home/alobo/.R/library"),
> but it would be nicer having this as default).
One possible way to solve this problem: R searches all libraries in
the environment variable R_LIBS, please read the documentation.
Hope this helps,
--
-------------------------------------------------------------------
Friedrich Leisch
Institut für Statistik Tel: (+43 1) 58801 10715
Technische Universität Wien Fax: (+43 1) 58801 10798
Wiedner Hauptstraße 8-10/1071 Friedrich.Leisch at ci.tuwien.ac.at
A-1040 Wien, Austria http://www.ci.tuwien.ac.at/~leisch
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