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Answers and rating deltas for
how to use r or sql to calculate the difference per group id?
| Author | Votes | Δ |
|---|---|---|
| r2evans | 1 | 0.00 |
Last visited: Sep 20, 2016, 2:42:35 PM
| Author | Votes | Δ |
|---|---|---|
| r2evans | 1 | 0.00 |