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Answers and rating deltas for
Creating new variables to R data.frame by summing based on factors
| Author | Votes | Δ |
|---|---|---|
| Ferdinand.kraft | 2 | +2.46 |
| A5C1D2H2I1M1N2O1R2T1 | 0 | -2.46 |
Last visited: Sep 14, 2014, 5:07:29 AM