How to show matplotlib plots?

Question

I am sure the configuration of matplotlib for python is correct since I have used it to plot some figures.

But today it just stop working for some reason. I tested it with really simple code like:

import matplotlib.pyplot as plt import numpy as np x = np.arange(0, 5, 0.1) y = np.sin(x) plt.plot(x, y) 

There's no error but just no figure shown up.

I am using python 2.6, Eclipse in Ubuntu

Answer 1

In matplotlib you have two main options:

1. Create your plots and draw them at the end:

   import matplotlib.pyplot as plt  plt.plot(x, y) plt.plot(z, t) plt.show() 

2. Create your plots and draw them as soon as they are created:

   import matplotlib.pyplot as plt from matplotlib import interactive interactive(True)  plt.plot(x, y) raw_input('press return to continue')  plt.plot(z, t) raw_input('press return to end')