StackRating
An Elo-based rating system for Stack Overflow
                
    Answers and rating deltas for
    in R, find rows in dataframe with maximum values grouped by values in another column
| Author | Votes | Δ | 
|---|---|---|
| G. Grothendieck | 4 | 0.00 | 
| Nick | 1 | 0.00 | 
Last visited: Sep 14, 2014, 5:07:29 AM