Hi Rodrigo,
Rodrigo Amestica wrote:
> Sebastien Vauban wrote:
>>>> You don't need to explicitly specify a return when working with a
>>>> session. Either of the following should work.
>>>>
>>>> #+BEGIN_SRC python :session test :file "images/test.png"
>>>> from pylab import *
>>>> plot(rand(10))
>>>> savefig('images/test.png')
>>>> #+END_SRC
>>>
>>> that does not quite work, I get no inlined image but the following line in
>>> the Messages buffer
>>>
>>> orgtbl-format-line: Wrong type argument: sequencep,
>>> <matplotlib\.lines\.Line2DError during redisplay: (wrong-type-argument
>>> arrayp nil)
>>
>> Try adding the `:results graphics' header argument...
>
> it does not help. Still same error. I'm using org-7.9.4 from tarball, in
> ob.el there is no 'graphics' option defined for :results.
Well, I *now* know it's not described in the Org manual...
╭──── http://lists.gnu.org/archive/html/emacs-orgmode/2013-03/msg01181.html
│
│ - :results graphics makes the list even longer, yes? :-) I'm not
│ sure that every language supports it and I don't believe it's
│ currently in the manual.
╰────
Though, it's described in many different posts on this ML, and in some
tutorials on Worg...
╭──── http://orgmode.org/worg/org-contrib/babel/languages/ob-doc-R.html
│
│ If a :file filename.ext header argument is provided to an R source block,
then
│ the output from the source block will go to the named file. What that output
│ is depends on the value of the :results header argument.
│
│ If the value is :results graphics then "base" graphics output is captured on
│ disk, and a link to the graphics file is inserted into the Org Mode buffer
(as
│ is also the case with the graphics-only languages such as gnuplot, ditaa,
dot,
│ and asymptote.)
╰────
I thought it was a "core" option value for all general-purpose languages (e.g.
emacs-lisp, python, R, ruby, sh), required when your code block outputs a
graphics.
After checking, I only found it in those files:
--8<---------------cut here---------------start------------->8---
./ob-maxima.el:117: (and (member "graphics" (cdr (assq :result-params params)))
./ob-octave.el:272: (and (member "graphics" (cdr (assq :result-params params)))
./ob-R.el:234: (and (member "graphics" (cdr (assq :result-params params)))
--8<---------------cut here---------------end--------------->8---
Maybe they are the only general-purpose languages able to output graphics? No,
wait, your example shows that python is also able to do so.
Then, I don't understand what that ":results graphics" option is not part of
python. Sorry not to be of more help...
Best regards,
Seb
--
Sebastien Vauban
