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Answers and rating deltas for
R: find first non-NA observation in data.table column by group
| Author | Votes | Δ |
|---|---|---|
| Arun | 5 | +0.72 |
| akrun | 2 | -0.39 |
| Sowmya S. Manian | -1 | -2.65 |
Last visited: Sep 8, 2016, 1:50:16 AM