#+TITLE:  Exercice 2
#+AUTHOR: Hervé Pabiou
#+DATE:   15 février 2023
#+LANGUAGE: fr
# #+PROPERTY: header-args :session  :exports both
# eval never-export

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* Calculs élémentaires                                          

x est la variable d'entrée
#+begin_src python :results output :session *python1* :exports both
import numpy as np

x = np.array([14.0, 7.6, 11.2, 12.8, 12.5, 9.9, 14.9, 9.4, 16.9, 10.2, 14.9, 18.1, 7.3, 9.8, 10.9,12.2, 9.9, 2.9, 2.8, 15.4, 15.7, 9.7, 13.1, 13.2, 12.3, 11.7, 16.0, 12.4, 17.9, 12.2, 16.2, 18.7, 8.9, 11.9, 12.1, 14.6, 12.1, 4.7, 3.9, 16.9, 16.8, 11.3, 14.4, 15.7, 14.0, 13.6, 18.0, 13.6, 19.9, 13.7, 17.0, 20.5, 9.9, 12.5, 13.2, 16.1, 13.5, 6.3, 6.4, 17.6, 19.1, 12.8, 15.5, 16.3, 15.2, 14.6, 19.1, 14.4, 21.4, 15.1, 19.6, 21.7, 11.3, 15.0, 14.3, 16.8, 14.0, 6.8, 8.2, 19.9, 20.4, 14.6, 16.4, 18.7, 16.8, 15.8, 20.4, 15.8, 22.4, 16.2, 20.3, 23.4, 12.1, 15.5, 15.4, 18.4, 15.7, 10.2, 8.9, 21.0])

print("La moyenne est {:.2f}".format(np.mean(x)))
print("l'écart-type est {:.2f}".format(np.std(x,ddof=1)))
print("Le minimum est {:.2f}".format(np.min(x)))
print("La médiane est {:.2f}".format(np.median(x)))
print("Le maximum est {:.2f}".format(np.max(x)))
#+end_src

#+RESULTS:
: La moyenne est 14.11
: l'écart-type est 4.33
: Le minimum est 2.80
: La médiane est 14.50
: Le maximum est 23.40


* Tracé de la variable d'entrée x.     :noexport:
#+begin_src python :results output file :session *python1*  :var matplot_lib_filename="figure1.png" :exports both
import matplotlib.pyplot as plt


plt.figure(figsize=(10,5))
plt.plot(x)
plt.tight_layout()

plt.savefig(matplot_lib_filename)
print(matplot_lib_filename)

#+end_src

#+RESULTS:
[[file:figure1.png]]

#+begin_src python :results output file :session *python1* :var matplot_lib_filename="figure2.png" :exports both
import matplotlib.pyplot as plt

import numpy

plt.figure(figsize=(10,5))
plt.hist(x)
plt.tight_layout()

plt.savefig(matplot_lib_filename)
print(matplot_lib_filename)

#+end_src

#+RESULTS:
[[file:figure2.png]]