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# MLTextClassifier.ModelParameters

Parameters that specify model training parameters and validation data.

```
struct ModelParameters
```

## Topics

### Creating parameters

[`init(validation: MLTextClassifier.ModelParameters.ValidationData, algorithm: MLTextClassifier.ModelAlgorithmType, language: NLLanguage?)`](/documentation/CreateML/MLTextClassifier/ModelParameters-swift.struct/init(validation:algorithm:language:))

Creates model parameters for a text classifier with the specified validation data, algorithm, and language.

  <doc://com.apple.documentation/documentation/NaturalLanguage/NLLanguage>

[`enum ModelAlgorithmType`](/documentation/CreateML/MLTextClassifier/ModelAlgorithmType)

The type of algorithm that a text classifier uses.

[`enum ValidationData`](/documentation/CreateML/MLTextClassifier/ModelParameters-swift.struct/ValidationData-swift.enum)

The validation data that a text classifier uses.

### Accessing parameters

[`var algorithm: MLTextClassifier.ModelAlgorithmType`](/documentation/CreateML/MLTextClassifier/ModelParameters-swift.struct/algorithm)

The parameter’s algorithm setting.

[`var language: NLLanguage?`](/documentation/CreateML/MLTextClassifier/ModelParameters-swift.struct/language)

The parameter’s language setting.

[`var validation: MLTextClassifier.ModelParameters.ValidationData`](/documentation/CreateML/MLTextClassifier/ModelParameters-swift.struct/validation)

The validation dataset.

[`var maxIterations: Int?`](/documentation/CreateML/MLTextClassifier/ModelParameters-swift.struct/maxIterations)

The maximum number of training iterations.

### Describing parameters

[`var description: String`](/documentation/CreateML/MLTextClassifier/ModelParameters-swift.struct/description)

A text representation of the model parameters.

[`var debugDescription: String`](/documentation/CreateML/MLTextClassifier/ModelParameters-swift.struct/debugDescription)

A text representation of the model parameters that’s suitable for output during debugging.

[`var playgroundDescription: Any`](/documentation/CreateML/MLTextClassifier/ModelParameters-swift.struct/playgroundDescription)

A description of the model parameters in a playground.

### Deprecated

[`init(validationData:algorithm:language:)`](/documentation/CreateML/MLTextClassifier/ModelParameters-swift.struct/init(validationData:algorithm:language:))

Creates parameters for a text classifier with validation data in a
set of labeled directories.

[`init(validationData: MLDataTable?, algorithm: MLTextClassifier.ModelAlgorithmType, language: NLLanguage?, textColumnValidationData: String?, labelColumnValidationData: String?)`](/documentation/CreateML/MLTextClassifier/ModelParameters-swift.struct/init(validationData:algorithm:language:textColumnValidationData:labelColumnValidationData:))

Creates parameters for a text classifier with validation data in a
data table.

[`var validationData: MLDataTable?`](/documentation/CreateML/MLTextClassifier/ModelParameters-swift.struct/validationData-swift.property)

The validation data.

[`var textColumnValidationData: String?`](/documentation/CreateML/MLTextClassifier/ModelParameters-swift.struct/textColumnValidationData)

The name of the text column in the validation data table.

[`var labelColumnValidationData: String?`](/documentation/CreateML/MLTextClassifier/ModelParameters-swift.struct/labelColumnValidationData)

The name of the label column in the validation data table.

### Default Implementations

[CustomDebugStringConvertible Implementations](/documentation/CreateML/MLTextClassifier/ModelParameters-swift.struct/CustomDebugStringConvertible-Implementations)

[CustomPlaygroundDisplayConvertible Implementations](/documentation/CreateML/MLTextClassifier/ModelParameters-swift.struct/CustomPlaygroundDisplayConvertible-Implementations)

[CustomStringConvertible Implementations](/documentation/CreateML/MLTextClassifier/ModelParameters-swift.struct/CustomStringConvertible-Implementations)

## Relationships

### Conforms To

[`Escapable`](/documentation/Swift/Escapable)

[`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible)

[`CustomDebugStringConvertible`](/documentation/Swift/CustomDebugStringConvertible)

[`CustomPlaygroundDisplayConvertible`](/documentation/Swift/CustomPlaygroundDisplayConvertible)

[`Copyable`](/documentation/Swift/Copyable)

---

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