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Answers and rating deltas for
How can I find the "set difference" of rows in two dataframes on a subset of columns in Pa
| Author | Votes | Δ |
|---|---|---|
| Roelant | 2 | +4.05 |
| Scratch'N'Purr | 1 | -0.25 |
| Pygirl | 1 | -2.03 |
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