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Answers and rating deltas for
R: Is there an efficient way to perform groupBy on one column and sum another column?
| Author | Votes | Δ |
|---|---|---|
| Jilber Urbina | 2 | +0.39 |
| Billy34 | 1 | -3.12 |
Last visited: Sep 14, 2014, 5:07:29 AM