StackRating
An Elo-based rating system for Stack Overflow
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Answers and rating deltas for
Add two mutated column in a grouping by with data.table
Author
Votes
Δ
JPM
4
+3.61
sm925
2
-1.75
Bruno
2
-1.86
Last visited: May 14, 2020, 3:16:00 AM