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Answers and rating deltas for
Using Pandas groupby how can you aggregate a column of lists using addition?
| Author | Votes | Δ |
|---|---|---|
| BENY | 3 | +1.25 |
| jpp | 3 | +1.30 |
| user3483203 | 1 | -1.59 |
| rafaelc | 1 | -0.96 |
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