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Package for creating and visualizing Confusion Matrices with a customizable heatmap.

Flutter Confusion Matrix #

A Flutter package for creating and visualizing Confusion Matrices with a customizable heatmap. This package is ideal for machine learning and data analysis applications where a visual representation of prediction accuracy is required.


🌟 Features #

  • Customizable heatmap colors and cell dimensions.
  • Configurable X-axis and Y-axis labels.
  • Adjustable background opacity for enhanced visibility.
  • Customizable divider colors between cells.
  • Support for custom text styles for axis labels.

Screenshot

🚀 Installation #

Add the package to your pubspec.yaml file:

dependencies:
  flutter_confusion_matrix: <latest_version>

Usage #

  ConfusionMatrix(
    xAxis: const ['A', 'B', 'C'],
    yAxis: const ['A', 'B', 'C'],
    data: const [
      [100, 33, 5],
      [20, 150, 70],
      [10, 30, 100],
    ],
    color: Colors.green,
    cellWidth: 100,
    cellHeight: 100,
    backgroundOpacity: 3,
    xAxisStyle: const TextStyle(color: Colors.black, fontSize: 16),
    yAxisStyle: const TextStyle(color: Colors.black, fontSize: 16),
  ),

🎨 Customization Options #

Parameter Type Description Default Value
xAxis List<String> Labels for the X-axis (columns). Required
yAxis List<String> Labels for the Y-axis (rows). Required
data List<List<num>> 2D list representing the confusion matrix data. Required
color Color Base color for the heatmap cells. Required
cellWidth double Width of each individual cell in the heatmap. Required
cellHeight double Height of each individual cell in the heatmap. Required
backgroundOpacity num Opacity factor for the cell background. 3
xAxisStyle TextStyle? Style for the X-axis labels. null
yAxisStyle TextStyle? Style for the Y-axis labels. null
reverseColor bool Flag to reverse the color gradient of the heatmap. true
padding EdgeInsetsGeometry? Padding around the heatmap. EdgeInsets.all(20)
dividerColor Color Color of the dividers between the cells. Colors.white

🔗 Contributing #

Contributions are welcome! If you encounter any issues or have suggestions for improvements, feel free to create an issue or submit a pull request.

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Package for creating and visualizing Confusion Matrices with a customizable heatmap.

Repository (GitHub)

Documentation

API reference

License

BSD-3-Clause (license)

Dependencies

flutter

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