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Answers and rating deltas for
sd function returns NA when using group_by() and summarise() in dplyr (no NA values in df)
| Author | Votes | Δ |
|---|---|---|
| Amit Gal | 1 | +3.89 |
| alan ocallaghan | 0 | -0.49 |
Last visited: Sep 5, 2020, 12:36:14 PM