StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
dplyr group_by + mutate strange NA appearing
| Author | Votes | Δ |
|---|---|---|
| Carsten Oppitz | 0 | -0.97 |
| mpalanco | 0 | +0.12 |
Last visited: Feb 22, 2016, 11:32:36 PM