StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
Operation on multiple column in a data frame based on group by
| Author | Votes | Δ |
|---|---|---|
| Richard Border | 3 | +4.71 |
| akrun | 2 | -0.42 |
Last visited: Jan 2, 2016, 3:59:50 AM