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Answers and rating deltas for
How do I count/aggregate values from a data.frame and reincorporate them into the data.frame?
| Author | Votes | Δ |
|---|---|---|
| Ramnath | 11 | +2.07 |
| Joshua Ulrich | 8 | +0.25 |
| joran | 2 | -1.86 |
| Uri Laserson | 1 | 0.00 |
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