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brier_score.rkt 309 B

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  1. #lang racket/base
  2. ; brier_score.rkt
  3. ;
  4. ; Compute Brier score for probabilistic predictions
  5. ; https://en.wikipedia.org/wiki/Brier_score
  6. (provide brier-score)
  7. (require math)
  8. ; compute Brier score
  9. ; f - forecast probability, [0, 1]
  10. ; o - actual outcome, 0 or 1
  11. (define (brier-score f o)
  12. (expt (- f o) 2))