StackRating
An Elo-based rating system for Stack Overflow
                
    Answers and rating deltas for
    R: tapply(x,y,sum) returns NA instead of 0
| Author | Votes | Δ | 
|---|---|---|
| Barker | 1 | 0.00 | 
Last visited: Nov 15, 2016, 6:06:33 PM
 
            | Author | Votes | Δ | 
|---|---|---|
| Barker | 1 | 0.00 |