---
title: MLFeatureType.invalid
framework: coreml
role: symbol
role_heading: Case
path: coreml/mlfeaturetype/invalid
---

# MLFeatureType.invalid

The type for invalid feature values.

## Declaration

```swift
case invalid
```

## See Also

### Feature types

- [MLFeatureType.int64](coreml/mlfeaturetype/int64.md)
- [MLFeatureType.double](coreml/mlfeaturetype/double.md)
- [MLFeatureType.image](coreml/mlfeaturetype/image.md)
- [MLFeatureType.multiArray](coreml/mlfeaturetype/multiarray.md)
- [MLFeatureType.string](coreml/mlfeaturetype/string.md)
- [MLFeatureType.dictionary](coreml/mlfeaturetype/dictionary.md)
- [MLFeatureType.sequence](coreml/mlfeaturetype/sequence.md)
- [MLFeatureType.state](coreml/mlfeaturetype/state.md)