---
title: validationMetrics
framework: createml
role: symbol
role_heading: Instance Property
path: createml/mlboostedtreeclassifier/validationmetrics
---

# validationMetrics

Measurements of the classifier’s performance on the validation data set.

## Declaration

```swift
var validationMetrics: MLClassifierMetrics { get }
```

## See Also

### Evaluating a boosted tree classifier

- [evaluation(on:)](createml/mlboostedtreeclassifier/evaluation(on:).md)
- [trainingMetrics](createml/mlboostedtreeclassifier/trainingmetrics.md)