Add shaded regions to your plot

When plotting time series data in Python, it is also possible to highlight complete regions of your time series plot. In order to add a shaded region between January 1, 1936 and January 1, 1950, you can use the command:

ax.axvspan('1936-01-01', '1950-01-01', color='red' , alpha=0.5)

Here we specified the overall transparency of the region by using the alpha argument (where 0 is completely transparent and 1 is full color).

Use the .axvspan() method to add a vertical red shaded region between the dates of January 1, 1900 and January 1, 1915 with a transparency of 0.3.
Use the .axhspan() method to add a horizontal green shaded region between the values of 6 and 8 with a transparency of 0.3.

Exercise

Add shaded regions to your plot

Instructions