Re: [O] How to end a :session?

[Rainer M Krug]

Andreas Leha <address@hidden> writes:

> Hi Rainer,

Hi Andreas,

>
> Rainer M Krug <address@hidden> writes:
>> Christopher Witte <address@hidden> writes:
>>
>>> perhaps what you want is a named session, see
>>> http://orgmode.org/manual/session.html
>>
>> Sure - that's what I have.
>>
>> But how can I close the named session when I don't need it anymore, or
>> want to start, the next time I use the named session, with a new
>> session?
>>
>>
>>>
>>> On 28 May 2015 at 10:44, Rainer M Krug <address@hidden> wrote:
>>>
>>>> Hi
>>>>
>>>> I can start a session as follow:
>>>>
>>>> --8<---------------cut here---------------start------------->8---
>>>> #+begin_src R :session Test
>>>> cat("Session Test\n")
>>>> #+end_src
>>>> --8<---------------cut here---------------end--------------->8---
>>>>
>>>> Now I hava an R session named *Test*. But how can I closes this session?
>>>> I thought about just quitting R
>>>>
>>>> --8<---------------cut here---------------start------------->8---
>>>> #+begin_src R :session Test
>>>> q(save = "no)
>>>> #+end_src
>>>> --8<---------------cut here---------------end--------------->8---
>>>>
>>>> but this does not return as ESS is waiting for the prompt (">").
>>>>
>>>> Is there a way of closing the session *Test* and close the buffer?
>>>>
>>>> My reasoning is that I want to do different longer analysis in one org
>>>> file and start each in its own session, i.e. clean R. But as they
>>>> involve several steps, I don't want to put them into one code block.
>>>>
>>>> So I have several code blocks which I want to execute in a "throw away
>>>> session" which I would like to discard afterwards.
>>>>
>>>> So I am looking for something like
>>>>
>>>> #+CLOSE_SESSION Test
>>>>
>>>> which would then close the session *Test*
>>>>
>>>> Is something like this possible at the moment?
>>>>
>
> How about
>
> #+name: killRsession
> #+begin_src emacs-lisp :var rsession="*myR*" :results none
> (progn
>   (switch-to-buffer rsession)
>   (ess-quit)
>   (sleep-for 1)
>   (kill-buffer))
> #+end_src
>
>
> #+call: killRsession("*myR*") :results none

Thanks - this works. But I get an error which says:

,----
| save-excursion: Wrong type argument: integer-or-marker-p, nil
`----

Any suggestion on how to avoid this?

Thanks,

Rainer
>
> Andreas
>
>

-- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, 
UCT), Dipl. Phys. (Germany)

Centre of Excellence for Invasion Biology
Stellenbosch University
South Africa

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