# LSMMapCreateClusters(_:_:_:_:_:) Computes a set of clusters that group similar categories or words. ``` func LSMMapCreateClusters(_ alloc: CFAllocator?, _ mapref: LSMMap, _ subset: CFArray?, _ numClusters: CFIndex, _ flags: CFOptionFlags) -> Unmanaged? ``` ## Discussion If `subset` is non-`NULL`, this function only performs clustering on the categories or words in `subset`. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)