---
title: annotationColumnID
framework: createmlcomponents
role: symbol
role_heading: Instance Property
path: createmlcomponents/boostedtreeregressor/annotationcolumnid
---

# annotationColumnID

The annotation column identifier.

## Declaration

```swift
var annotationColumnID: ColumnID<Annotation>
```

## See Also

### Getting the properties

- [configuration](createmlcomponents/boostedtreeregressor/configuration.md)
- [featureColumnNames](createmlcomponents/boostedtreeregressor/featurecolumnnames.md)