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

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

Creates a validation dataset from a data source.

## Declaration

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

## Discussion

Discussion dataSource: An MLHandActionClassifier.DataSource instance.

## See Also

### Designating validation data

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