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Answers and rating deltas for
In R, how do I average rows of a data frame over groups without renaming each column?
| Author | Votes | Δ |
|---|---|---|
| David Arenburg | 4 | +1.55 |
| akrun | 1 | +0.25 |
| Roman Luštrik | 0 | -1.80 |
Last visited: Apr 27, 2015, 9:35:15 PM