[ESS] ESS with multiple versions of R

[Stephen Eglen]

On Fri, Oct 18 2013, Jim Maas wrote:

> I'm using GNU Emacs 23.4.1 on Ubuntu 13.4 Linux and ESS version 12.09.  I
> have a lot of stuff that runs well on R 2.15 but want to try the new R
> 3.0.2 so have installed it as well in /usr/local/bin/R-3.02.  I created a
> link to produce a new executable file called R-3 and put this directory in
> the $PATH statement via my /etc/profile file.  I can load R-3 from anywhere
> but can not find it from within Emacs/ESS.  Could anyone suggest what I
> might have wrong or help me diagnose the problem?
>
> Thanks a bunch.


Can you do "C-h v ess-r-versions RET" and report what you see.  Do you
see the followng:

ess-r-versions is a variable defined in `ess-r-d.el'.
Its value is ("R-1" "R-2" "R-3" "R-devel" "R-patched")

Documentation:
List of partial strings for versions of R to access within ESS.

Stephen...