On Apr 12, 2011, at 1:27 PM, justin boyd wrote:

> I would like to install two versions of R on Mac OSX 10.6.7.
> 
> The two versions I would like to install are 2.10.1 and 12.2.2 for use with 
> StatET in Eclipse.  I have successfully installed and used each version 
> respectively with StatET in Eclipse.  However, I have not been successful in 
> getting both of them configured for use on the same system.
> 
> We know from the Read Me during the .pkg installation that R will over write 
> older versions.  The installer recommends running:
> 
>       pkgutil --forget org.r-project.R.Leopard.fw.pkg
> 
> to keep the previous versions.  In addition, a reply (Mon Feb 9 15:31:19 CET 
> 2009) to a similar question in this form recommends using 
> 
>       pkuntils --pkgs | grep r-project
> 
> I "believe" that both of these commands run successfully.  However, the next 
> installation of R still over-writes the previous version.
> 

Can you explain what you mean? There is no "overwriting" because each R version 
lives in a separate directory of the framework. They never overwrite each other 
even if you don't use pkgutils (if you don't Apple just *removes* the old R, it 
doesn't overwrite anything). Please make sure you have read R for Mac OS X FAQ 
- in particular 12.15 should be helpful.


> The (Mon Feb 9 15:31:19 CET 2009)  post also states to delete: 
>       
>       ./Library/Receipts/R-Frameworks.pkg 
> 
> However, neither 2.10.1 or 12.2.2 create a R-Frameworks.pkg in 
> ./Library/Receipts/.
> 

/Library/Receipts refers to older OS X (10.4 and earlier) and old builds of R 
(for those old OS).


> I would be genuinely  interested in obtaining detailed and organized 
> instructions on how to successfully install two versions of R on the same 
> system.
> 

Well, to my best knowledge that's what's in the README. If anything is unclear 
about that, please explain.

Cheers,
Simon


> It would also be great if those instructions were written in such a way that 
> a user with limited Linux experience could understand and implement them.
> 
> Best,
> Justin
>       [[alternative HTML version deleted]]
> 
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> 

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