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From: Florian Lindner <mailinglists@xgm.de>
To: emacs-orgmode@gnu.org
Subject: Problem with python session
Date: Thu, 6 Oct 2016 14:41:02 +0200	[thread overview]
Message-ID: <nt5gos$14m$1@blaine.gmane.org> (raw)

Hello,

I have an org file:

* Overview of available basis functions
#+BEGIN_SRC python :session generateBFpics :exports results :results file
  import matplotlib.pyplot as plt
  import numpy as np

  def set_plotoptions():
      plt.xlabel("x")
      plt.ylabel("$\phi(x)$")
      plt.grid()


  np.seterr(invalid='ignore')

  x = np.linspace(-3, 3, 1000)

  plt.plot(x,  np.log(abs(x))*np.power(x, 2))
  plt.suptitle("Thin Plate Splines")
  plt.title("$\phi(|x|) = \log(x) \cdot x^2$")
  set_plotoptions()
  plt.savefig("bf-tps.pdf")
  plt.close()
  "bf-tps.pdf"
#+END_SRC

#+RESULTS:
[[file:bf-tps.pdf]]

#+BEGIN_SRC python :session generateBFpics :exports results :results file
  for shape in [1, 2, 3, 4]:
      plt.plot(x, np.power(shape, 2) + np.power(x,2), label = "s = %i" % shape)
  plt.suptitle("Multi Quadrics")
  plt.title("$\phi(|x|) = s^2 + x^2$")
  plt.legend()
  set_plotoptions()
  plt.savefig("bf-multiquadrics.pdf")
  plt.close()
  "bf-multiquadrics.pdf"
#+END_SRC

#+RESULTS:
[[file:bf-multiquadrics.pdf]]



Both PDFs are generated. But only the first one has the content I expect, the othe one is an empty plot (it's a plot,
yes, but empty axes.

When I copy these pieces of code into on .py file it works just great. To my understanding that just how session mode works.

What could be the problem here?

Thanks,
Florian

next             reply	other threads:[~2016-10-06 12:41 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-06 12:41 Florian Lindner [this message]
2016-10-06 17:54 ` Problem with python session William Henney
2016-10-09  9:30   ` Nicolas Goaziou
2016-10-10 18:40     ` John Kitchin
2016-10-11 15:53       ` Nicolas Goaziou
2016-10-13  4:10         ` William Henney

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