Re: Matplotlib (Python) plots inline

[Pierre de Buyl <pdebuyl@ulb.ac.be>]

Hello,

I have success with the following:
#+begin_src python :results output raw :exports results
   import numpy, matplotlib, matplotlib.pyplot
   figure = matplotlib.pyplot.figure()
   axes = figure.add_subplot(111, title=u"Hello", xlabel="x",  
ylabel="y")
   x = numpy.arange(-10, 10, 0.1)
   axes.plot(x, x**2)
   figure.savefig("/tmp/plot_test.png")
   figure.clf()
   print "[[/tmp/plot_test.png]]"
#+end_src

You get only the figure as a result, and not the code.
This method executes the code at each export. The alternative is to  
set ":exports none" , to execute with C-c C-c and then to delete the  
"+results:" line so that the result is exported.

Pierre

Le 6 juin 11 à 05:21, Torsten Bronger a écrit :

> Hallöchen!
>
> I wonder what is the best way to include plots generated from Python
> code into my notes.  I found a way but maybe there's a better one.
>
> What I do is
>
> --8<---------------cut here---------------start------------->8---
> #+begin_src python
>   import numpy, matplotlib, matplotlib.pyplot
>   figure = matplotlib.pyplot.figure()
>   axes = figure.add_subplot(111, title=u"Hello", xlabel="x",  
> ylabel="y")
>   x = numpy.arange(-10, 10, 0.1)
>   axes.plot(x, x**2)
>   figure.savefig("/tmp/plot_test.png")
>   figure.clf()
> #+end_src
>
> #+results:
> : None
>
> [[/tmp/plot_test.png]]
> --8<---------------cut here---------------end--------------->8---
>
> However, it is a little bit cumbersome.  Is there an easier way to
> define code (possibly with boilerplate), and let it be replaced with
> the graphics file it produces?
>
> Tschö,
> Torsten.
>
> -- 
> Torsten Bronger    Jabber ID: torsten.bronger@jabber.rwth-aachen.de
>                                   or http://bronger-jmp.appspot.com
>
>