---
title: Sliding-window reduction functions
framework: accelerate
role: collectionGroup
role_heading: API Collection
path: accelerate/sliding-window-reduction-functions
---

# Sliding-window reduction functions

Calculate maximum values and sums of values in a sliding window.

## Topics

### Sliding-window summation functions

- [slidingWindowSum(_:usingWindowLength:)](accelerate/vdsp/slidingwindowsum(_:usingwindowlength:)-2t1dc.md)
- [slidingWindowSum(_:usingWindowLength:)](accelerate/vdsp/slidingwindowsum(_:usingwindowlength:)-reb8.md)
- [slidingWindowSum(_:usingWindowLength:result:)](accelerate/vdsp/slidingwindowsum(_:usingwindowlength:result:)-i972.md)
- [slidingWindowSum(_:usingWindowLength:result:)](accelerate/vdsp/slidingwindowsum(_:usingwindowlength:result:)-5tg0h.md)