[R-SIG-Mac] installing multiple versions of R

stephen sefick ssefick at gmail.com
Mon Dec 1 18:04:39 CET 2008

I downloaded the Rswitch application, but the current version and that
is the only version that is available even if I push the rediscover

On Mon, Dec 1, 2008 at 11:46 AM, Steve Lianoglou
<mailinglist.honeypot at gmail.com> wrote:
> Hi Stephen,
> On Dec 1, 2008, at 11:29 AM, stephen sefick wrote:
>> I would like to install R 2.7.2 in || with R 2.8 to test what is wrong
>> with a package I am maintaining.  It worked fine with R 2.7.2 chron
>> 2.3-24 and doesn't work with R 2.8 chron 2.3-24 or chron 2.3-25.
>> thanks
> You can easily do so.
> Just download the appropriate installers for each version and install them:
> 2.8.x : http://cran.r-project.org/bin/macosx/R-2.8.0.dmg
> 2.7.x : http://cran.r-project.org/bin/macosx/old/R-2.7.2.dmg
> FYI, they'll install in:
> /Library/Frameworks/R.framework/Versions/2.*
> You can switch between which version to run "at go time" as I described in
> my previous email:
>  (i) either by using the RSwitch application; or
>  (ii) by renaming the R.app that's installed to R28.app, and R27.app as
> appropriate.
> Both RSwitch and the R guis can be downloaded from:
> http://r.research.att.com/
> HTH,
> -steve
> ps - I'm not sure of (ii), since I haven't tested it for R27 vs R28 (only R
> in 68bit vs R 32bit, which works), though I believe it works. I have tested
> and previously used (i).
> --
> Steve Lianoglou
> Graduate Student: Physiology, Biophysics and Systems Biology
> Weill Medical College of Cornell University
> http://cbio.mskcc.org/~lianos

Stephen Sefick

Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods.  We are mammals, and have not exhausted the
annoying little problems of being mammals.

								-K. Mullis

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