---
title: MLRecommender.SimilarityType.pearson
framework: createml
role: symbol
role_heading: Case
path: createml/mlrecommender/similaritytype/pearson
---

# MLRecommender.SimilarityType.pearson

The Pearson correlation similarity measure.

## Declaration

```swift
case pearson
```

## Discussion

Discussion Use Pearson correlation similarity for comparing item ratings.

## See Also

### Similarity types

- [MLRecommender.SimilarityType.jaccard](createml/mlrecommender/similaritytype/jaccard.md)
- [MLRecommender.SimilarityType.cosine](createml/mlrecommender/similaritytype/cosine.md)