StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
find max value in a data.frame by group and show its date as year-month-day
| Author | Votes | Δ |
|---|---|---|
| G. Grothendieck | 2 | +1.37 |
| J_F | 0 | -1.37 |
Last visited: Jan 27, 2017, 6:17:58 AM