A HISTOGRAM IN MATPLOTLIB

Listing 5.18 displays the contents of histogram1.py that illustrates how to plot a histogram using Matplotlib.

Listing 5.18: histogram1.py

import matplotlib.pyplot as plt

x = [1, 2, 3, 4, 5, 6, 7, 4]

plt.hist(x, bins = [1, 2, 3, 4, 5, 6, 7])
plt.title("Histogram")
plt.legend(["bar"])
plt.show()

Listing 5.18 is straightforward: the variable x is initialized as a set of numbers, followed by a block of code that renders a histogram based on the data in the variable x. Launch the code in Listing 5.18 and you will see the histogram that is shown in Figure 5.12.

FIGURE 5.12 A histogram based on random values.