Choose Components With Scree Plots
Keeping enough explained variance.
How Many to Keep?
PCA can hand you dozens of components, but you only want the useful few. The real skill is choosing how many to keep.
Meet the Scree Plot
A scree plot charts each component against the variance it explains, so you can see importance drop off at a glance.
All lessons in this course
- The Curse of Too Many Features
- How PCA Finds Components
- Scale First, Then Fit PCA
- Choose Components With Scree Plots