THE ETA SCORECARD
Beginner
Difficulty: Easy Tags: Metrics & Evaluation
Story
Uber's ETA team tracks one north-star error number every single day: simple, but it has to be exactly right, since it's the number that goes in front of leadership.
The Math
MAE = (1/n) * sum_i |y_i - yhat_i|
Input Format
n
y_1 yhat_1
...
y_n yhat_n
Output Format
Scalar MAE, 6 decimals.
Constraints
1 <= n <= 10^6- Time limit: 1.0 second.
Example
Input
4
10 12
15 14
20 18
12 13
Output
1.500000
Keywords
metrics-and-evaluation
Python
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