<!--
{
  "availability" : [
    "iOS: 15.0.0 -",
    "iPadOS: 15.0.0 -",
    "macCatalyst: 15.0.0 -",
    "macOS: 12.0.0 -",
    "visionOS: 1.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "CreateML",
  "identifier" : "/documentation/CreateML/MLHandPoseClassifier/ModelParameters-swift.struct/ValidationData",
  "metadataVersion" : "0.1.0",
  "role" : "Enumeration",
  "symbol" : {
    "kind" : "Enumeration",
    "modules" : [
      "Create ML"
    ],
    "preciseIdentifier" : "s:8CreateML20MLHandPoseClassifierV15ModelParametersV14ValidationDataO"
  },
  "title" : "MLHandPoseClassifier.ModelParameters.ValidationData"
}
-->

# MLHandPoseClassifier.ModelParameters.ValidationData

A dataset a hand pose classifier task uses to validate the model
during a training session.

```
enum ValidationData
```

## Topics

### Designating validation data

[`case dataSource(MLHandPoseClassifier.DataSource)`](/documentation/CreateML/MLHandPoseClassifier/ModelParameters-swift.struct/ValidationData/dataSource(_:))

Creates a validation dataset from a data source.

[`case split(strategy: MLSplitStrategy)`](/documentation/CreateML/MLHandPoseClassifier/ModelParameters-swift.struct/ValidationData/split(strategy:))

Creates a validation dataset by randomly selecting a portion of
the hand pose classifier task’s training dataset with a split
strategy.

[`case none`](/documentation/CreateML/MLHandPoseClassifier/ModelParameters-swift.struct/ValidationData/none)

Creates an empty validation dataset, which tells the task to
skip the model validation phase in a training session.


---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)