[ESS] Choosing between multiple *remote* R versions
spinuvit at gmail.com
Fri Jun 8 21:43:26 CEST 2012
It looks that ESS cannot do that. Current ESS process selection is a
bit rigid. I think we can follow slime here
We can have a variable ess-inferior-commands such that the user can do
((R-win ("C:/progs/R/R-term.exe" "--q"))
When ESS starts it can define R-win, R-dev and myR_remote interactive
commands (callable with M-x).
This should also work fine for remote access with tramp.
>> "Lasko, Thomas A" <tom.lasko at vanderbilt.edu>
>> on Wed, 6 Jun 2012 08:40:10 -0500 wrote:
> Hi folks,
> I am trying to figure out how to set things up so I can choose between multiple
> versions of R running on a remote server that I access using emacs/ess/tramp. I
> know how to do this for different local R versions, but the same strategy hasn't
> worked for different remote versions. I've scoured the web, various manuals, and
> searched these archives all to no avail. But I have to believe there's a way to
> do it.
> I use emacs tramp mode to edit R files on my remote CentOS machine, and to start
> R 2.15.0 processes on that machine with M-x R, which just works (amazingly
> easy). For a specific purpose, I now also have Revolution R 2.13 installed on
> that machine (under a symlink named Revo64), and I can run it fine from an ssh
> command line, or I can change the path environment variable so that the Revo R
> version always starts with M-x R. But I need to be able to selectively run each
> of these versions via tramp, and I'm having trouble figuring out how to set that
For time being you can try to write a little function to reset
environment variable interactively.
> I know that at least for local versions, there's a variable ess-r-versions where
> I can list the prefix of each R version potentially found in my path, such as
> R-2, R64, R-devel, (and for me now, Revo), etc, and they will be available to
> ESS as processes that can be run under M-x R64, etc. I can get this working for
> local versions of R, but not for remote versions. I'm guessing that ESS does a
> search for the versions at startup, long before the remote connection is made,
> so they are not detected as possible choices.
> Does anybody know how to set things up so that I can choose between multiple R
> versions on a remote machine when I am using emacs/ESS/tramp mode? Apologies if
> this is spelled out in documentation or previously answered somewhere - I did
> try to find it.
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