---
title: "evaluation(on:)"
framework: createml
role: symbol
role_heading: Instance Method
path: "createml/mlwordtagger/evaluation(on:)"
---

# evaluation(on:)

Computes evaluation metrics.

## Declaration

```swift
func evaluation(on labeledTokens: [(tokens: [MLWordTagger.Token], labels: [String])]) -> MLWordTaggerMetrics
```

## Parameters

- `labeledTokens`: An array of token and label pairs.

## Return Value

Return Value Word tagger metrics.

## See Also

### Evaluating a word tagger

- [evaluation(on:tokenColumn:labelColumn:)](createml/mlwordtagger/evaluation(on:tokencolumn:labelcolumn:).md)
- [trainingMetrics](createml/mlwordtagger/trainingmetrics.md)
- [validationMetrics](createml/mlwordtagger/validationmetrics.md)
- [MLWordTaggerMetrics](createml/mlwordtaggermetrics.md)