Week 9

Author

Huanfa Chen

Published

October 29, 2025

Introduction

This week will introduce how to simplify complex datasets by reducing the number of variables while preserving important information.

Learning Objectives

By the end of this week, you will be able to:

  1. Understand the principle of dimensionality reduction.
  2. Understand the method of principle component analysis.
  3. Visualise and describe the results of PCA.

Lecture

To access the lecture notes: Lecture

Quiz

To access the quiz on Moodle, please check Moodle page.

Practical

Note

To save a copy of notebook to your own GitHub Repo: follow the GitHub link, click on Raw and then Save File As... to save it to your own computer. Make sure to change the extension from .ipynb.txt (which will probably be the default) to .ipynbbefore adding the file to your GitHub repository.

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Further resources