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Understanding Overfitting and Underfitting

This interactive visualization demonstrates three key concepts in machine learning:

  • Underfitting: The model is too simple and fails to capture the underlying pattern in the data.
  • Good Fit: The model captures the true pattern while being resistant to noise.
  • Overfitting: The model is too complex and fits the noise in the training data.

How to Use:

Click the buttons above the visualization to switch between different fitting scenarios. The blue dots represent your training data points, while the colored lines show different model fits:

  • Orange line: Underfitting (too simple)
  • Green line: Good fit (balanced)
  • Purple line: Overfitting (too complex)