---
title: "init(undefined:)"
framework: coreml
role: symbol
role_heading: Initializer
path: "coreml/mlfeaturevalue/init(undefined:)"
---

# init(undefined:)

Creates a feature value with a type that represents an undefined or missing value.

## Declaration

```swift
convenience init(undefined type: MLFeatureType)
```

## Parameters

- `type`: The type of the undefined or missing value.