StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
How to summarize number of products purchased by a customer based on a product list in R
| Author | Votes | Δ |
|---|---|---|
| gaut | 4 | +1.31 |
| luis vergara | 1 | +0.02 |
| Duck | 1 | -0.82 |
| Chris | 0 | -3.96 |
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