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Answers and rating deltas for
How can add a new column in df1 called value that looks up the value from df2 based on the year colu
Author | Votes | Δ |
---|---|---|
Vaishali | 4 | +1.48 |
3novak | 2 | +0.57 |
piRSquared | 0 | -1.55 |
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