From: "Thomas S. Dye" <tsd@tsdye.com>
To: Torsten Wagner <torsten.wagner@gmail.com>
Cc: Org Mode Mailing List <emacs-orgmode@gnu.org>
Subject: Re: [babel] noweb does not work (as expected)
Date: Mon, 9 Nov 2009 06:32:17 -1000 [thread overview]
Message-ID: <2B2D9FBC-E90A-47EC-B4AA-9460A9E5CD40@tsdye.com> (raw)
In-Reply-To: <200911091638.17208.torsten.wagner@googlemail.com>
On Nov 8, 2009, at 9:38 PM, Torsten Wagner wrote:
> Hi Tom,
>
> If I try to use the noweb way, I always got error messages which
> tells me that
> org-babel can not read the result correctly
>
>>
>> #+srcname: r-load-libraries
>> #+begin_src R
>> library(RMySQL)
>> library(reshape)
>> library(xtable)
>> #+end_src
>
>
> As I see you do not use any special header here which means results
> is set to
> value, right? However, there is no special return line to org-babel
> either. In
> my understanding and according to my error messages library(xtable)
> would be
> evaluated as the result of this block...
>
> However this results in error messages at least for python.
>
> Which org-babel version due you use (which branch)?
>
> Maybe you or someone else can bring some more light into
> this :results topic.
> I somehow miss the option :results none to avoid any results which
> should be
> useful if the source code block is just a piece of a bigger
> arrangement. For
> literate programming and RR it might be essential to spread blocks
> over the
> file which will be tangled together (by tangle or a noweb block).
> However not
> all need provide a result but just need to run in the same session.
> Maybe just
> the last block of such an arrangement will come up with a result
> suitable for
> org-babel.
>
> Actually I prefer the idea of :noweb instead of tangle, which seems
> to me more
> flexible and faster.
>
> Just need to get it running
>
> Thanks
>
> Torsten
Hi Torsten,
It's not clear to me what outcome you desire. Tangling should result
in a source file that can serve as input to a compiler or
interpreter. The combination of :noweb and :session lets you write
literate programs that are sent directly to an interpreter, which
presumably creates some useful output along the way (my example makes
some graphs after a lot of data reshaping), but might be used just to
set up an environment in the interpreter, which then can be
manipulated directly in the session buffer.
I presumed that your reference to makefile meant that you were heading
for the :noweb, :session route. I find this useful because I can
query the state of variables in the session and put the results in a
LaTeX source block. Of course, the same thing would be possible to
insert the results into the org file.
I'm using the version of org-babel that comes with org-mode version
6.32trans. I think I last updated about a week ago. I'm not
competent to work at the bleeding edge. Besides that, I find the org-
babel distributed with org-mode to be mature for such a young piece of
software, and it does pretty much everything I ask it to do.
HTH,
Tom
next prev parent reply other threads:[~2009-11-09 16:32 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-09 3:47 [babel] noweb does not work (as expected) Torsten Wagner
2009-11-09 4:33 ` Thomas S. Dye
2009-11-09 7:38 ` Torsten Wagner
2009-11-09 16:32 ` Thomas S. Dye [this message]
2009-11-10 1:40 ` Torsten Wagner
2009-11-09 4:41 ` Dan Davison
2009-11-09 7:16 ` Torsten Wagner
2009-11-09 16:04 ` Dan Davison
2009-11-10 1:51 ` Torsten Wagner
2009-11-10 5:33 ` Eric Schulte
2009-11-10 3:02 ` [babel] (solved) " Torsten Wagner
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