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Answers and rating deltas for
How to combine two columns in R data.table like this:
| Author | Votes | Δ |
|---|---|---|
| Filipe Siqueira | 1 | +3.92 |
| AaronT86 | 0 | -0.04 |
| Julian Zucker | -1 | -3.88 |
Last visited: Oct 27, 2017, 7:18:27 AM