📖 Principal Components Analysis via Spectral Decomposition

Read the following:

• Rodriguez, M., & Zieffler, A. (2021). Basis vectors and matrices. In Matrix algebra for educational scientists.
  
• Rodriguez, M., & Zieffler, A. (2021). Eigenvalues and eigenvectors. In Matrix algebra for educational scientists.
  
• Rodriguez, M., & Zieffler, A. (2021). Spectral decomposition. In Matrix algebra for educational scientists.

Additional Resources

• Wilke, C. O. (2020). PCA tidyverse style. Personal blog.