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Answers and rating deltas for
How to change dataframe in R (extract first row for all ID by date)
| Author | Votes | Δ |
|---|---|---|
| Yunzhe Liu | 1 | +3.98 |
| Axeman | 0 | -0.29 |
| Buzz Lightyear | 0 | -1.66 |
Last visited: Oct 12, 2016, 12:19:02 AM