[R] problem using embedded R

[Lobanov, Victor S. [PRDUS]]

It is Windows 2000 still... I use latest version of R 2.7.0. There is a
system environment variable "PATH" that lists directories where system
looks for dlls when needed. Each running process can modify this
environment variable, but changes apply to this process only. Instead of
modifying system settings, my application simply sets correct R_HOME and
PATH (e.g. c:\MyApp\R\bin) when it starts so that R can load supporting
dlls such as lapack.dll. However, after I load a package and check
process PATH, it is reset to the original system setting and all my
modifications are lost.

-----Original Message-----
From: Prof Brian Ripley [mailto:ripley at stats.ox.ac.uk] 
Sent: Friday, May 23, 2008 12:46 PM
To: Lobanov, Victor S. [PRDUS]
Cc: r-help at r-project.org
Subject: Re: [R] problem using embedded R


All the usual questions:

What OS?
What version of R?
What is meant by 'environment path'?  (The environment of a process is
not 
a path.)

I have a hunch that if this is Windows >= XP it was solved in R 2.7.0. 
Otherwise the footer of this message applies.

On Fri, 23 May 2008, Lobanov, Victor S. [PRDUS] wrote:

> I have a peculiar problem with an application that uses embedded R. 
> The application comes with its own copy of R installation and it sets 
> up correct environment path for the process during the startup. 
> However, when I execute R code that loads an additional package (e.g. 
> library(XYZ)), the environment path gets reset to the system's default

> value, which renders R unusable. I wonder if anyone had experienced a 
> similar problem and knows how to fix it?
>
> Victor
>
>
> 	[[alternative HTML version deleted]]
>
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-- 
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)
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