R help - Sep 2012 - Rscript installing packages

Hi there

I have an Rscript and I am looking for a way to install a package
non-interactively. In Rscript {Utils}, I saw an example which does
something like this, however this does not seem to work for my particular
example. I am trying to install the following package in an Rscript
(without switching to interactive mode).

res <- try(install.packages("DEoptim"))

if(inherits(res, "try-error")) q(status=1) else q()


Error:

Installing package(s) into ‘/home/xx/R/x86_64-pc-linux-gnu-library/2.13’

(as ‘lib’ is unspecified)

Error in contrib.url(repos, type) :

  trying to use CRAN without setting a mirror


Any idea how I can fix this or specify "lib"? Any help would be most
appreciated.

Thank you in advance,
Diviya

	[[alternative HTML version deleted]]

On 12-09-10 2:03 AM, Diviya Smith wrote:
> Hi there
>
> I have an Rscript and I am looking for a way to install a package
> non-interactively. In Rscript {Utils}, I saw an example which does
> something like this, however this does not seem to work for my particular
> example. I am trying to install the following package in an Rscript
> (without switching to interactive mode).
>
> res <- try(install.packages("DEoptim"))
>
> if(inherits(res, "try-error")) q(status=1) else q()
>
>
> Error:
>
> Installing package(s) into ?/home/xx/R/x86_64-pc-linux-gnu-library/2.13?
>
> (as ?lib? is unspecified)
>
> Error in contrib.url(repos, type) :
>
>    trying to use CRAN without setting a mirror
>
>
> Any idea how I can fix this or specify "lib"? Any help would be
most
> appreciated.
>
You need to set a CRAN mirror.  options("repos") should not contain
the
dummy value "@CRAN@", you should put in the URL of your mirror.

Duncan Murdoch