What is the difference between interpolation and extrapolation in regression modeling?

Data Science with Python Hard

Data Science with Python — Hard

What is the difference between interpolation and extrapolation in regression modeling?

Key points

  • Interpolation predicts within training data range
  • Extrapolation predicts outside training range
  • Extrapolation can be unreliable due to unknown patterns
  • Interpolation relies on learned patterns
  • Extrapolation extends beyond observed data

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