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feat(pygal): implement heatmap-correlation#63

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feat(pygal): implement heatmap-correlation#63
claude[bot] wants to merge 1 commit intomainfrom
auto/heatmap-correlation/pygal

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@claude
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@claude claude Bot commented Nov 29, 2025

Summary

Implements heatmap-correlation for pygal library.

Parent Issue: #53
Sub-Issue: #60
Attempt: 1/3

Implementation

  • plots/pygal/heatmap/heatmap-correlation/default.py

Important Note

⚠️ pygal does not have native heatmap support. This implementation uses a grouped bar chart as an alternative visualization to display the correlation matrix data. While this doesn't create a traditional heatmap grid, it does visualize all correlation values.

For true heatmap functionality, libraries like matplotlib, seaborn, plotly, or bokeh are more suitable.

What was implemented

  • Created spec file at specs/heatmap-correlation.md
  • Implemented correlation matrix calculation using pandas
  • Visualized correlations using pygal's grouped bar chart
  • Each variable is a series showing correlations with all other variables
  • Values are displayed on bars for readability
  • Custom style with multiple colors to differentiate series

- Add heatmap-correlation spec file
- Implement correlation matrix using grouped bar chart
- Document limitation: pygal lacks native heatmap support
- Use alternative visualization to show correlation data
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codecov Bot commented Nov 29, 2025

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@MarkusNeusinger MarkusNeusinger deleted the auto/heatmap-correlation/pygal branch December 1, 2025 20:15
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