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Answers and rating deltas for
How can I construct an outer product matrix from a data.table
| Author | Votes | Δ |
|---|---|---|
| Arun | 4 | +0.61 |
| nograpes | 1 | -0.27 |
| DataWookie | 1 | +0.84 |
| Troy | 0 | -3.55 |
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