[R] how to set environment variables?

Prof Brian Ripley ripley at stats.ox.ac.uk
Thu Oct 20 13:51:24 CEST 2005


On Thu, 20 Oct 2005, Andreas Zankl wrote:

> The help file of the R bitmap function says that I have to set the
> environment variable R_GSCMD to the path of my Ghostscript
> installation.

Actually, it does not say that.  It says you _can_ specify the path to 
your executable (not the installation) that way. It will work without 
doing so if the executable 'gs' (on a Unix-alike) is on your path, which 
it normally is on Unix-alikes.

> How do I set this variable (either by commandline or in
> R.app for Mac)? Sorry if this sounds like a very basic question, but
> I could not find the answer anywhere else.

?Sys.putenv for how to do it from R.  help.search("environment variable") 
got me there.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595




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