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# init(precisionRecall:excludingObserved:)

Creates metrics for a recommender, given a data table with precision and recall metric columns, and whether the
recommender omitted training data.

```
init(precisionRecall: MLDataTable, excludingObserved: Bool)
```

## Discussion

Do not use this initializer. [`MLRecommender`](/documentation/CreateML/MLRecommender) generates metrics for you when you call its
[`evaluation(on:userColumn:itemColumn:ratingColumn:cutoffs:excludingObserved:)`](/documentation/CreateML/MLRecommender/evaluation(on:userColumn:itemColumn:ratingColumn:cutoffs:excludingObserved:))
method.

---

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