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Brier Skill Score
Problem
Compute the Brier skill score versus a reference: 1 - brier_model / brier_reference.
Return 0.0 when the reference score is 0.
Hint
Positive skill means the model beats the reference forecast.
Test cases
case 1
in: [0.1,0.25]
expected: 0.6
case 2
in: [0.3,0.2]
expected: -0.4999999999999998
case 3
in: [0.2,0]
expected: 0
case 4
in: [0.5,0.5]
expected: 0
Starter codePython
def brier_skill_score(brier_model, brier_reference):
# Your code here
pass4 test cases · run your code against them in the editor