Numerical Computing with Python

Building a comprehensive stock chart

In the following elaborate example, we are going to apply the many techniques that we have covered thus far to create a more comprehensive stock chart. In addition to the preceding plot, we will add a line chart to display the Relative Strength Index (RSI) and a bar chart to show trade volume. A special market event (http://markets.businessinsider.com/news/stocks/apple-stock-price-falling-new-iphone-speed-2017-6-1002082799) is going to be annotated on the chart as well:

If you look closely at the charts, you might notice some missing dates. These days are usually non-trading days or public holidays that were not present in our DataFrame.

import datetimeimport matplotlib.pyplot as pltfrom matplotlib.dates ...