[R] Cannot change location of tempdir()
Prof Brian Ripley
ripley at stats.ox.ac.uk
Thu Mar 8 12:45:14 CET 2012
On Thu, 8 Mar 2012, Jon Olav Skoien wrote:
> One of the functions I use needs to write to a temporary file, in the
> directory given by tempdir(). I want to change this from the standard one, as
> the file is too large for the drive. However, tempfile() doesnt seem to
> respect the environment variables when I change them with Sys.setenv(). In a
> fresh R-session:
Who said it would? By the time you set these, tempdir() is already
Set TMPDIR before you start R, e.g. on the RGui command line.
>  "C:\\Users\\skoiejo\\AppData\\Local\\Temp"
>> Sys.setenv(TMP = "e:\\Temp\\Rtmp")
>  "e:\\Temp\\Rtmp"
>  "C:\\Users\\skoiejo\\AppData\\Local\\Temp\\Rtmp2tvQ7U\\file499a5987"
> # I have also tried to change "TMPDIR", "TEMP" and "R_USER", all with the
> same result.
> # The directory is writable:
>> write("some text", file = paste(Sys.getenv("TMP"),"test.txt",sep = ""))
>  "test.txt"
> I have probably misunderstood something, but what? Session info below.
> R version 2.14.0 (2011-10-31)
> Platform: x86_64-pc-mingw32/x64 (64-bit)
>  LC_COLLATE=English_United States.1252 LC_CTYPE=English_United
> States.1252 LC_MONETARY=English_United States.1252
>  LC_NUMERIC=C LC_TIME=English_United States.1252
> attached base packages:
>  stats graphics grDevices utils datasets methods base
> loaded via a namespace (and not attached):
>  tools_2.14.0
> I know this is not the last version, but I do not have administrator rights
> myself on the computer and did not see any relevant references to tempfile()
> in the news for newer versions.
> Jon Olav Skøien
> Joint Research Centre - European Commission
> Institute for Environment and Sustainability (IES)
> Land Resource Management Unit
> Via Fermi 2749, TP 440, I-21027 Ispra (VA), ITALY
> jon.skoien at jrc.ec.europa.eu
> Tel: +39 0332 789206
> Disclaimer: Views expressed in this email are those of the individual and do
> not necessarily represent official views of the European Commission.
> R-help at r-project.org mailing list
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
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
More information about the R-help