Confusion Matrix Explorer (PyShiny App)

This repo (confusion-matrix-explorer) contains a PyShiny app for exploring how changing a decision threshold affects a binary classifier confusion matrix and related metrics (sensitivity, specificity, precision, etc.).

Launch the App In Your Browser

Click here: Launch the Confusion Matrix Explorer

The app runs in your browser using Shinylive (Pyodide), no installation needed.

About the App

The Confusion Matrix Explorer app demonstrates how changing the decision threshold (the vertical T line) affects the confusion matrix and related metrics (sensitivity, specificity, etc.) for a binary classification problem.

How to use:

• Use the sidebar upper slider to vary the decision threshold.
• Use the sidebar lower slider to vary the number of bins in the histogram.
• Compare the as you raise (or lower) the decision threshold.

To learn more:

• See ABOUT.md.

Optional: Run on Your Machine

• To run on your machine, see docs/index.md
• To make modifications, see DEVELOPER.md

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Screenshot (Raise the Bar)

Screenshot (Default)

Screenshot (Lower the Bar)

License

This project is licensed under the MIT License.