How to Make a PCA Biplot in Python

Published: 27 October 2025
on channel: Inside Learning Machines

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In this video we will cover how to make a Biplot in Python. Biplots are an important visualization tool for analyzing the results from a PCA run on a set of features. After introducing the idea behind these plots, we'll work through a Python implementation, and then test it on the IRIS dataset.

The break-down of this video is as follows:

Introduction 00:00
What is a Biplot? 01:18
Jupyter Notebook Setup 02:53
Biplot Implementation in Python 03:30
IRIS Example 7:56
Conclusions 12:25

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The notebook presented here can be found at:
https://github.com/insidelearningmach...

This video is based off of an article on my blog. You can find that blog article here: https://insidelearningmachines.com/bi...

My article describing the PCA algorithm can be found here: https://insidelearningmachines.com/pc...

The homepage of my blog is: https://insidelearningmachines.com

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