StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
How can I groupby an ID and tag the first row with a non-null value?
| Author | Votes | Δ |
|---|---|---|
| Simon | 3 | +0.48 |
| tawab_shakeel | 2 | -2.52 |
Last visited: Oct 21, 2019, 3:17:49 PM