StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
How to sum by grouped columns in R?
| Author | Votes | Δ |
|---|---|---|
| Joris Meys | 5 | +1.56 |
| Psidom | 3 | -0.21 |
| lmo | 2 | -0.82 |
Last visited: Jun 24, 2017, 4:03:14 PM