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Is there an R function to select one variable from each group (group_by()) from the dataframe?
| Author | Votes | Δ |
|---|---|---|
| akrun | 1 | +0.01 |
| Rui Barradas | 1 | +0.37 |
| G. Grothendieck | 1 | -0.37 |
Last visited: Sep 5, 2020, 12:36:14 PM