StackRating
An Elo-based rating system for Stack Overflow
                
    Answers and rating deltas for
    How do I aggregate the values from two columns and create a new column from it?
| Author | Votes | Δ | 
|---|---|---|
| Vaishali | 2 | 0.00 | 
Last visited: Oct 27, 2017, 7:18:27 AM