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An Elo-based rating system for Stack Overflow
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Answers and rating deltas for

Group by find summary measure, non NA value, and specific value using summarise in R

Author Votes Δ
Ronak Shah 3 +0.29
A. Stam 2 +1.77
olorcain 1 -0.83
Rushabh Patel 0 -2.80
Last visited: Sep 4, 2019, 3:46:46 PM