StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
Distinct a list of records based on two column using groupby
| Author | Votes | Δ |
|---|---|---|
| Paul Zahra | 1 | +0.55 |
| Ivan Zub | 0 | -4.39 |
Last visited: May 1, 2015, 9:25:13 PM