It would be nice to have a standard directory where R can write things this way. A semi-standard directory is given by Sys.getenv("R_LIBS_USER"), which defaults to ~/R/.../. Maybe ~/R/ could serve as that convention? That way we (various developers etc) would also not clutter up users home directory in "random" ways.
Personally I prefer a hidden directory, e.g. ~/.R/, but there are pros and cons with such an approach. /Henrik On Tue, Mar 15, 2011 at 8:57 AM, Prof Brian Ripley <rip...@stats.ox.ac.uk> wrote: > On Tue, 15 Mar 2011, Hadley Wickham wrote: > >> Hi all, >> >> Does anyone have any advice or experience storing package settings >> between R runs? Can I rely on the user's home directory (e.g. >> tools::file_path_as_absolute("~")) to be available and writeable >> across platforms? > > No. First, please use path.expand("~") for this, and it does not > necessarily mean the home directory (and in principle it might not expand at > all). In practice I think it will always be *a* home directory, but on > Windows there may be more than one (and watch out for local/roaming profile > differences). > > Second, it need not be writeable, and so many package authors write rubbish > in my home directory that I usually arrange it not be writeable to R test > processes. > > If you want something writeable across processes, use dirname(tempdir()) . > >> >> Hadley >> >> -- >> Assistant Professor / Dobelman Family Junior Chair >> Department of Statistics / Rice University >> http://had.co.nz/ >> >> ______________________________________________ >> R-help@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-help >> 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, rip...@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 > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.