I Built PCA from Scratch in Python — Here’s What It Did to My Model

📰 Medium · AI

Learn how to implement Principal Component Analysis (PCA) from scratch in Python and improve your model's performance

intermediate Published 27 Apr 2026
Action Steps
  1. Build a PCA algorithm from scratch using NumPy
  2. Verify the implementation using sklearn's PCA
  3. Apply PCA to a dataset to reduce dimensionality
  4. Compare the performance of the model with and without PCA
  5. Test the robustness of the PCA implementation using different datasets
Who Needs to Know This

Data scientists and machine learning engineers can benefit from understanding PCA to improve their model's performance and reduce dimensionality. This knowledge can be applied to various projects, such as data preprocessing and feature engineering.

Key Insight

💡 Implementing PCA from scratch can help improve model performance and reduce dimensionality

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📊 Implement PCA from scratch in Python and boost your model's performance! 💻

Key Takeaways

Learn how to implement Principal Component Analysis (PCA) from scratch in Python and improve your model's performance

Full Article

A step by step guide to understanding Principal Component Analysis by building it from scratch with NumPy, verifying it with sklearn, and… Continue reading on Medium »
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