[Rd] Capture output of install.packages (pipe system2)

[Hadley Wickham]

You shouldn't assume - use file.path(R.home("bin"), "R")

Hadley

On Tue, Sep 24, 2013 at 9:37 AM, Jeroen Ooms <jeroen.ooms at stat.ucla.edu> wrote:
> On Mon, Sep 23, 2013 at 6:50 PM, Duncan Murdoch
> <murdoch.duncan at gmail.com> wrote:
>> x <- system2("Rscript", "-e \"install.packages('MASS',
>> repos='http://probability.ca/cran')\"", stdout=TRUE, stderr=TRUE)
>
> Thank you, this suggestion seems to work (although I agree that
> starting 3 procs to install a single package seems suboptimal). One
> additional question: is it safe to assume that the "Rscript"
> executable can always be found by the R process (cross platform), or
> do I need to modify the example in case Rscript is not in the system
> search path?
>
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-- 
Chief Scientist, RStudio
http://had.co.nz/