Matplotlib

Using the pyplot functions only until now.

import matplotlib.pyplot as plt

Get the pyplot library. We assume this is done in all examples on this page.

plt.figure(2)

Initialize a new figure. figure(1) is initialized by default.

plt.subplot(211)

Create 1st subplot in figure(1) (212 is the 2nd subplot in figure(1)

211 : Split the figure in 2, figure(1) subplot 1

plt.plot(array)

Create the graphical object from the values in the array. Show the graph if your environment (e.g. jupyter) supports it.

When you do more plots without changing figure or subplot the result will be added to the current figure.

plt.show()

Show the current figure.

Selfexplaning example code:

plt.plot(array)
plt.suptitle('Set the graph tilte')
plt.xlabel('Set the x label')
plt.ylabel('Set the y label')
plt.savefig('plot.png')
plt.show()

Show an image:

firefox plot.png
eog plot.png
shotwell plot.png