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Answers and rating deltas for
Using mutate_at to create new column using multiple other columns in a data frame
| Author | Votes | Δ |
|---|---|---|
| Patrick25 | 3 | +4.12 |
| Axeman | 2 | +1.18 |
| tmfmnk | 1 | +0.05 |
| Rushabh Patel | 0 | -0.59 |
| onyambu | 0 | -1.12 |
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