---
title: "evaluation(on:textColumn:labelColumn:)"
framework: createml
role: symbol
role_heading: Instance Method
path: "createml/mltextclassifier/evaluation(on:textcolumn:labelcolumn:)"
---

# evaluation(on:textColumn:labelColumn:)

Computes evaluation metrics.

## Declaration

```swift
func evaluation(on dataFrame: DataFrame, textColumn: String, labelColumn: String) -> MLClassifierMetrics
```

## Parameters

- `dataFrame`: A data frame containing labeled examples.
- `textColumn`: The name of the text column.
- `labelColumn`: The name of the label column.

## Return Value

Return Value The computed metrics or an error message.

## See Also

### Evaluating a text classifier

- [evaluation(on:)](createml/mltextclassifier/evaluation(on:).md)
- [trainingMetrics](createml/mltextclassifier/trainingmetrics.md)
- [validationMetrics](createml/mltextclassifier/validationmetrics.md)