---
title: validation
framework: createml
role: symbol
role_heading: Instance Property
path: createml/mlsoundclassifier/modelparameters-swift.struct/validation
---

# validation

The sound classifier’s validation dataset.

## Declaration

```swift
var validation: MLSoundClassifier.ModelParameters.ValidationData
```

## See Also

### Accessing the training parameters

- [maxIterations](createml/mlsoundclassifier/modelparameters-swift.struct/maxiterations.md)
- [overlapFactor](createml/mlsoundclassifier/modelparameters-swift.struct/overlapfactor.md)
- [algorithm](createml/mlsoundclassifier/modelparameters-swift.struct/algorithm.md)
- [featureExtractionTimeWindowSize](createml/mlsoundclassifier/modelparameters-swift.struct/featureextractiontimewindowsize.md)