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AI & ML · Concept

Confusion Matrix

A confusion matrix is a table that compares true and predicted class labels. Its diagonal shows correct predictions; other cells show classification errors between categories.

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Syntax

confusion_matrix(y_true, y_pred, labels=None)

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  • classification_report
  • accuracy
  • precision
  • recall
  • f1-score
  • plot_confusion_matrix

Source: Classification with Claude | Claude Cookbook. Checked 2026-11-03.