[R-SIG-Mac] Multiple versions of R
dwinsemius at comcast.net
Sat Apr 11 05:45:15 CEST 2009
On Feb 9, 2009, at 9:31 AM, Simon Urbanek wrote:
> On Feb 9, 2009, at 3:08 , Matthew Fero wrote:
>> Is there a way to maintain multiple versions of R and run them
>> using R.app? I can see that R.framework has multiple Versions
>> subfolders but is appears the binaries are gone.
> It means that you have upgraded your R instead of a fresh install
> (see the ReadMe that is displayed during the installation).
> Therefore only files that you have added after the installation were
> If you want to keep your previous version you have the delete the
> receipt (see the read). Alternatively on Mac OS X 10.5 you can use
> pkgutil --forget with the package identifier (use pkuntils --pkgs |
> grep r-project to see which R packages are installed).
That would be :
pkgutil --pkgs | grep r-project
> Note than even if you install multiple versions in parallel, you
> should use RSwitch (or do the same manually) to switch between them
> for reliable operation (see FAQ for details).
David Winsemius, MD
West Hartford, CT
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