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Answers and rating deltas for
How can I merge multiple dataframes with the same column names?
| Author | Votes | Δ |
|---|---|---|
| A5C1D2H2I1M1N2O1R2T1 | 4 | +0.39 |
| A_K | 2 | -0.05 |
| Clayton Stanley | 0 | -3.05 |
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