---
title: MLWordTaggerMetrics
framework: createml
role: symbol
role_heading: Structure
path: createml/mlwordtaggermetrics
---

# MLWordTaggerMetrics

Metrics you use to evaluate a word tagger’s performance.

## Declaration

```swift
struct MLWordTaggerMetrics
```

## Mentioned in

Creating a word tagger model

## Topics

### Analyzing the tagger’s performance

- [taggingError](createml/mlwordtaggermetrics/taggingerror.md)
- [precisionRecall](createml/mlwordtaggermetrics/precisionrecall.md)
- [confusion](createml/mlwordtaggermetrics/confusion.md)

### Handling errors

- [isValid](createml/mlwordtaggermetrics/isvalid.md)
- [error](createml/mlwordtaggermetrics/error.md)

### Describing metrics

- [description](createml/mlwordtaggermetrics/description.md)
- [debugDescription](createml/mlwordtaggermetrics/debugdescription.md)
- [playgroundDescription](createml/mlwordtaggermetrics/playgrounddescription.md)
- [confusionDataFrame](createml/mlwordtaggermetrics/confusiondataframe.md)
- [precisionRecallDataFrame](createml/mlwordtaggermetrics/precisionrecalldataframe.md)

### Default Implementations

- [CustomDebugStringConvertible Implementations](createml/mlwordtaggermetrics/customdebugstringconvertible-implementations.md)
- [CustomPlaygroundDisplayConvertible Implementations](createml/mlwordtaggermetrics/customplaygrounddisplayconvertible-implementations.md)
- [CustomStringConvertible Implementations](createml/mlwordtaggermetrics/customstringconvertible-implementations.md)

## Relationships

### Conforms To

- [Copyable](swift/copyable.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomPlaygroundDisplayConvertible](swift/customplaygrounddisplayconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Escapable](swift/escapable.md)

## See Also

### Model accuracy

- [Improving Your Model’s Accuracy](createml/improving-your-model-s-accuracy.md)
- [MLClassifierMetrics](createml/mlclassifiermetrics.md)
- [MLRegressorMetrics](createml/mlregressormetrics.md)
- [MLRecommenderMetrics](createml/mlrecommendermetrics.md)
- [MLObjectDetectorMetrics](createml/mlobjectdetectormetrics.md)