[ESS] ESS with multiple versions of R

[Stephen Eglen]

On Fri, Oct 18 2013, Jim Maas wrote:

>> Put this at top of .emacs before ESS is loaded:
>>
>>  (setq ess-r-versions '("R-1" "R-2" "R-3" "R-devel" "R-patched"))
>>
>> and restart Emacs.  Then see if M-x R-3.02 works.
>>
>> Did that and now
> C-h v ess-r-versions  .... shows it but
>
> in Emacs
> M-x R-[Tab]   still does not show it as an option.
>
> Perhaps, along with the comment that Martin sent, I just need to update
> Emacs and ESS.  What I'm using is the most up to date in the Ubuntu
> repositories, but I've compiled and installed R 3.02 manually so perhaps
> the older version of ESS can not handle it.  Do you think I need to upgrade
> both Emacs and ESS?

Check in a *shell* buffer that R-3.02 works

i.e.
M-x shell

and then type "R-3.02" in the *shell* buffer.