StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
For all levels of a factor, return all levels of another factor from same dataframe - using dplyr...
| Author | Votes | Δ |
|---|---|---|
| A5C1D2H2I1M1N2O1R2T1 | 4 | +1.17 |
| mnel | 1 | -0.84 |
| Alex | 0 | -2.67 |
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