StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
How to create a time lag of a column of dates by another sorted column using the data.table package?
| Author | Votes | Δ |
|---|---|---|
| Ricardo Saporta | 2 | 0.00 |
Last visited: Apr 27, 2015, 11:31:37 AM