StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
Aggregate a data frame while keeping other variables, with dplyr
| Author | Votes | Δ |
|---|---|---|
| talat | 4 | 0.00 |
Last visited: Aug 9, 2018, 9:00:57 PM
| Author | Votes | Δ |
|---|---|---|
| talat | 4 | 0.00 |