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Answers and rating deltas for
data.frame: create column by applying a function to groups of rows
| Author | Votes | Δ |
|---|---|---|
| Julius Vainora | 6 | +3.88 |
| Patrick Hausmann | 3 | +0.13 |
| Matthew Plourde | 2 | -3.34 |
| user2621147 | 1 | 0.00 |
Last visited: Sep 14, 2014, 5:07:29 AM