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Answers and rating deltas for
How can I get column data to be added based on a group designation using R?
| Author | Votes | Δ |
|---|---|---|
| Joshua Ulrich | 4 | +0.40 |
| Chase | 2 | +0.52 |
| csgillespie | 1 | -3.74 |
Last visited: Sep 14, 2014, 5:07:29 AM