StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
How to group by table and create the new columns to put the original value in there?
| Author | Votes | Δ |
|---|---|---|
| a_horse_with_no_name | 2 | +0.98 |
| Hambone | 0 | -0.98 |
Last visited: Feb 20, 2018, 11:05:04 AM