Machine Learning, Artificial Intelligence, Statistics, Math, Mathematics.
https://sebastianraschka.com/Articles/2014_pca_step_by_step.html Python, P. (2018). Principal Component Analysis (PCA) in Python. Stack Overflow. Retrieved 5 September 2018, from https://stackoverflow.com/questions/13224362/principal-component-analysis-pca-in-python Decoding Dimensionality