---
title: featureColumns
framework: createml
role: symbol
role_heading: Instance Property
path: createml/mlclassifier/featurecolumns
---

# featureColumns

The names of the columns you selected at initialization to train the classifier.

## Declaration

```swift
var featureColumns: [String] { get }
```

## See Also

### Creating and training a classifier

- [init(trainingData:targetColumn:featureColumns:)](createml/mlclassifier/init(trainingdata:targetcolumn:featurecolumns:).md)
- [targetColumn](createml/mlclassifier/targetcolumn.md)