Re: [Rd] Have download.packages consider non-CRAN repositories

From: Duncan Murdoch <murdoch.duncan_at_gmail.com>
Date: Thu, 21 Jun 2012 08:05:15 -0400

On 12-06-21 5:58 AM, Ingmar Schuster wrote:
> Hi List,
>
> I've set up a CRAN-like repository (not a CRAN mirror) on the local
> filesystem (this will change to http in the future). R has been told
> about this repository using the following entry in
> R_HOME/etc/repositories:
> PMR2 PMR2 file:///Users/arbeit/Documents/clarin/Open_Science/PMR2/
> TRUE TRUE FALSE FALSE
>
> Now I expected download.packages(), install.packages() etc. to look
> for packages in "/Users/arbeit/Documents/clarin/Open_Science/PMR2/"
> without passing them repos="file:///Users/..." as an option. That
> doesn't happen and I'm not completely sure why. Did I misinterpret the
> role of R_HOME/etc/repositories or is it possible I made a mistake?
>
> A related question is this: my PMR2 repo provides source packages
> only. Is there a way to tell a lokal R installation to look for source
> packages _only_ for this specific repo and use binary packages for
> CRAN?
>
> Thanks a lot
> Ingmar
>

You need to set the "repos" option to change the default repository. The setRepositories() function does that using the file you edited.

Duncan Murdoch



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