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Answers and rating deltas for
r - Efficiently create variable indicating if date variable precedes event (by group)
| Author | Votes | Δ |
|---|---|---|
| Frank | 6 | +0.85 |
| chinsoon12 | 6 | +2.10 |
| thelatemail | 5 | +0.03 |
| Martin Morgan | 4 | -1.25 |
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