Stacked plot

A stacked plot represents the area under the line plot, and multiple line plots are stacked one over the other. It is used to provide a visualization of the cumulative effect of multiple variables being plotted on the y axis.

We will plot the number of product defects by a defect reason code, for three months stacked together to give a cumulative picture for the quarter.

Getting ready

Import the required libraries:

import numpy as np
import matplotlib.pyplot as plt

How to do it...

The following are the steps to plot a stacked plot:

1. Define the data for the...