Chapter 22 TODO: Principal Component Analysis

22.1 TL;DR

What it does
TODO
When to do it
TODO
How to do it
TODO
How to assess it
TODO

22.2 What it does

TODO

22.3 When to do it

TODO

22.4 How to do it

TODO

22.5 How to assess it

TODO

22.6 Where to learn more

TODO