[R] How to set directory Rscript runs in/Sweave output directory

[Prof Brian Ripley]

On Mon, 28 Jul 2008, Paul.Rustomji at csiro.au wrote:

> Hello
>
> I am using Sweave to generate some pdf reports using R on a Windows
> platform and would like to control the output directory that the
> generated .tex file goes to.  Basically I use the following commands in
> a batch file:
>
> set outdir=c:/output/1234
>
> Rscript -e Sweave('C:/pathpathpath/script.Rnw')
>
> Which produces script.tex
>
> Sweave has the option of specifying an output directory for figures, but
> the .tex file is always created in the directory that the Rscript
> command was initiated in via the batch file.  So my questions are thus:
>
> 1.  Can Rscript be invoked in a nominated directory (ie %outdir%) from
> within a batchfile

Yes.  Perhaps clearer, use

cd mypath
Rcmd Sweave script.Rnw


> 2.  Or Can Sweave direct the .tex output file to a nominated directory?
>
> I have tried Rscript -e setwd(shell('echo %outdir%',intern=T)) -e
> Sweave(....

The way to access environment variables in R is Sys.getenv().

> to change the current working directory to %outdir% before invoking
> Sweave but this doesn't seem to work in batch mode.
>
> paul
>
> Paul Rustomji
> Rivers and Estuaries
> CSIRO Land and Water
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>
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>
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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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