---
title: dimension
framework: ML Compute
role: symbol
role_heading: Instance Property
platforms: [iOS 14.0+, iPadOS 14.0+, Mac Catalyst 14.0+, macOS 11.0+, tvOS 14.0+]
path: mlcompute/mlcconcatenationlayer/dimension
---

# dimension

The dimension, or axis, along which you concatenate tensors.

## Declaration

```swift
var dimension: Int { get }
```

## Discussion

Discussion The default value is 1, which typically represents features channels.