Principal Component Analysis (PCA) in Python – Step-by-Step Machine Learning Guide

Unlock the power of Principal Component Analysis (PCA) — one of the most widely used dimensionality reduction techniques in Machine Learning and Data Science. In this step-by-step Python guide, you will learn what PCA is, why it is used, how it works mathematically, and how to implement PCA using Python with real datasets. This tutorial covers everything from intuition to implementation, making it perfect for students, beginners, and professionals.