9 Principal Components Analysis
9.1 Standardized Linear Combinations
9.2 Principal Components in Practice
9.3 Interpretation of the PCs
9.4 Asymptotic Properties of the PCs
9.5 Normalized Principal Components Analysis
9.6 Principal Components as a Factorial Method
9.7 Common Principal Components
9.8 Boston Housing
9.9 More Examples
9.10 Exercises