---
title: "init(length:dataType:)"
framework: metalperformanceshaders
role: symbol
role_heading: Initializer
path: "metalperformanceshaders/mpsvectordescriptor/init(length:datatype:)"
---

# init(length:dataType:)

## Declaration

```swift
convenience init(length: Int, dataType: MPSDataType)
```

## See Also

### Initializers

- [init(length:vectors:vectorBytes:dataType:)](metalperformanceshaders/mpsvectordescriptor/init(length:vectors:vectorbytes:datatype:).md)