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Answers and rating deltas for
How can I return column title within data.frame only if it contains a value of interest?
| Author | Votes | Δ |
|---|---|---|
| A5C1D2H2I1M1N2O1R2T1 | 2 | +1.22 |
| rnso | 0 | -0.14 |
| Rich Scriven | 0 | -1.08 |
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