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Answers and rating deltas for
R: using ifelse statement to check if column exists, then perform calculation
| Author | Votes | Δ |
|---|---|---|
| Benjamin | 5 | +0.49 |
| Andrew Brēza | 2 | -2.03 |
| BENY | 2 | -1.86 |
Last visited: Oct 27, 2017, 7:18:27 AM