---
title: "column(axis:extremum:)"
framework: hvf
role: symbol
role_heading: Instance Method
platforms: [iOS 18.4+, iPadOS 18.4+, Mac Catalyst 18.4+, macOS 15.4+, tvOS 18.4+, visionOS 2.4+, watchOS 11.4+]
path: "hvf/compositewriter/column(axis:extremum:)"
---

# column(axis:extremum:)

Convenience for computing matrix column

## Declaration

```swift
func column(axis: Int, extremum: AxisExtremum) -> Int
```