Mastering Python for Data Science

Playing with text

Adding text to your chart can be done by using a simple matplotlib function. You only have to use the text() command to add it to the chart:

>>> # Playing with text
>>> n = np.random.random_sample((5,))

>>> plt.bar(np.arange(len(n)), n)
>>> plt.xlabel('Indices')
>>> plt.ylabel('Value')
>>> plt.text(1, .7, r'$\mu=' + str(np.round(np.mean(n), 2)) + ' $')

>>> plt.show()

In the preceding code, the text() command is used to add text within the plot:

The first parameter takes the x axis value and the second parameter takes the y axis value. The third parameter is the text that needs to be added to the plot. The latex expression has been ...