pymc-devs/pymc-examples

Add Probabilistic PCA example (code already exists)

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#250 opened on Nov 23, 2021

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Description

I coded this up a while ago, pretty simple model but I think it's an interesting (and commonly referred to) model: https://gist.github.com/twiecki/713cf58f5fa37332d0cda48a7c798016

Probably just needs some more text and explanation.

Contributor guide

Research direction
Take the existing code from the gist (https://gist.github.com/twiecki/713cf58f5fa37332d0cda48a7c798016) and integrate it into a Jupyter notebook with step by step explanations. Ensure the notebook runs end to end and includes clear comments and markdown cells explaining the Probabilistic PCA model, its implementation in PyMC, and how to interpret the results.
Tech stack
python
Domain
documentation
Issue type
Documentation
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Python
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
85