---
title: "MLHandPoseClassifier.ModelParameters.ValidationData.dataSource(_:)"
framework: createml
role: symbol
role_heading: Case
path: "createml/mlhandposeclassifier/modelparameters-swift.struct/validationdata/datasource(_:)"
---

# MLHandPoseClassifier.ModelParameters.ValidationData.dataSource(_:)

Creates a validation dataset from a data source.

## Declaration

```swift
case dataSource(MLHandPoseClassifier.DataSource)
```

## Parameters

- `dataSource`: An doc://com.apple.createml/documentation/CreateML/MLHandPoseClassifier/DataSource instance.

## See Also

### Designating validation data

- [MLHandPoseClassifier.ModelParameters.ValidationData.split(strategy:)](createml/mlhandposeclassifier/modelparameters-swift.struct/validationdata/split(strategy:).md)
- [MLHandPoseClassifier.ModelParameters.ValidationData.none](createml/mlhandposeclassifier/modelparameters-swift.struct/validationdata/none.md)