[ESS] remote R via ssh - customizing the command used to start R

[Chris Wallace]

Dear Stephen,

I confirm that

(defun RserverB ()
         "Run R on serverB using the R.magic script"
         (interactive)
         (let ((inferior-R-program-name "/home/USER/bin/R.magic")
     	 (ess-directory "/ssh:USER using serverB:~/"))
           (R)))

works without altering inferior-R-program-name outside the function.  In 
fact, this construct is so much easier than typing the 
/ssh:USER using sarver:~/ each time to connect to a specific server, I have 
now defined RserverA(), RserverC() even for servers which don't require 
the R.magic!

Thank you,

Chris

On 04/01/16 22:15, Stephen Eglen wrote:
> Oops you don't need the setq in the let construct.
>
> On 4 January 2016 21:58:17 GMT+00:00, Stephen Eglen <sje30 using cam.ac.uk> wrote:
>
>     Thanks for the follow up to the list Chris, glad it works:
>
>         (defun RserverB ()
>         "Run R on serverA using the R.magic script"
>         (interactive)
>         (setq inferior-R-program-name "/home/USER/bin/R.magic")
>         (setq ess-directory "/ssh:USER using serverB:~/")
>         (R))
>
>
>     I think you may need (again untested)
>
>     (defun RserverB ()
>         "Run R on serverA using the R.magic script"
>         (interactive)
>         (let ((inferior-R-program-name "/home/USER/bin/R.magic")
>     	 (setq ess-directory "/ssh:USER using serverB:~/"))
>           (R)))
>
>     the let statement means that you only temporarily bind those two
>     variables; otherwise in your version, after running RserverB, you will
>     find that inferior-R-program-name has changed from its default of R.
>
>     Stephen
>
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>
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>
> --
> Sent from my Android device with K-9 Mail. Please excuse my brevity.

-- 
JDRF/WT Diabetes and Inflammation Laboratory 
(http://www-gene.cimr.cam.ac.uk))
NIHR Cambridge Biomedical Research Centre
Cambridge Institute for Medical Research
University of Cambridge

http://chr1swallace.github.io