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# NLDistance

The distance between two strings in a text embedding.

```
typealias NLDistance = Double
```

## Discussion

The meaning of an [`NLDistance`](/documentation/NaturalLanguage/NLDistance) is directly related to the [`NLDistanceType`](/documentation/NaturalLanguage/NLDistanceType) you use when you call a method that uses it. For example, if you use the [`neighborsForString:maximumCount:distanceType:`](/documentation/NaturalLanguage/NLEmbedding/neighborsForString:maximumCount:distanceType:) method and use [`NLDistanceType.cosine`](/documentation/NaturalLanguage/NLDistanceType/cosine) for the `distanceType` parameter, the method calculates the cosine distance and returns it as an [`NLDistance`](/documentation/NaturalLanguage/NLDistance).

## Topics

### Calculating Distance

[`NLDistanceType`](/documentation/NaturalLanguage/NLDistanceType)

The means of calculating a distance between two locations in a text embedding.


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