StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
How to efficiently aggregate multiple data.table columns by groups, N-at-a-time, where N is variable
| Author | Votes | Δ |
|---|---|---|
| David Arenburg | 8 | +0.98 |
| akrun | 3 | -0.68 |
| Dirk | 1 | -2.39 |
Last visited: Nov 13, 2015, 10:57:39 AM