StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
I have a dataset whose columns are words. How can I add the same columns to each other?
| Author | Votes | Δ |
|---|---|---|
| wwnde | 4 | +2.88 |
| Dani Mesejo | 2 | -2.88 |
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