---
title: "init(checkpoint:)"
framework: Create ML
role: symbol
role_heading: Initializer
platforms: [macOS 11.0+]
path: "createml/mlactivityclassifier/init(checkpoint:)"
---

# init(checkpoint:)

Creates an activity classifier from a training session checkpoint.

## Declaration

```swift
init(checkpoint: MLCheckpoint) throws
```

## Parameters

- `checkpoint`: A checkpoint from an activity classifier training session.