---
title: categories
framework: createmlcomponents
role: symbol
role_heading: Instance Property
path: createmlcomponents/onehotencoder/transformer/categories
---

# categories

Unique values to encode

## Declaration

```swift
var categories: Set<Category?>
```

## See Also

### Getting the categories

- [category(at:)](createmlcomponents/onehotencoder/transformer/category(at:).md)