[R-SIG-Mac] RSwitch - making it easier to test pre-release versions of R

[Simon Urbanek]

Rob,

On Sep 19, 2006, at 7:30 PM, Rob J Goedman wrote:

> Could another way of using RSwitch be between two identical  
> versions of R, i.e. what triggers the list that shows up?
>

It is simply the list of directories in /Library/R.framework/Versions


> I would love to use it to switch between an R version with many  
> (most) packages installed and a version with hardly any additional  
> packages installed. Installing a package takes fairly long with  
> many, many installed packages  - at least I think that's why the  
> final part of R CMD INSTALL takes a long pause after printing 'done 
> (...)' on my system.
>
> Updating/developing/testing a package, particularly when several  
> other are contributing as well, I tend to build/install over and over.
>

I have just looked at the sources and you can override the version  
name using FW_VERSION when you configure R. I didn't test it, but it  
may work - you can use any name you wish (perhaps no spaces for  
sanity reasons ;)).

Cheers,
Simon