---
title: SparseSubfactorQ
framework: accelerate
role: symbol
role_heading: Global Variable
path: accelerate/sparsesubfactorq
---

# SparseSubfactorQ

A Q factor subfactor that’s valid for QR only.

## Declaration

```swift
var SparseSubfactorQ: SparseSubfactor_t { get }
```

## See Also

### Constants

- [SparseSubfactorInvalid](accelerate/sparsesubfactorinvalid.md)
- [SparseSubfactorP](accelerate/sparsesubfactorp.md)
- [SparseSubfactorS](accelerate/sparsesubfactors.md)
- [SparseSubfactorL](accelerate/sparsesubfactorl.md)
- [SparseSubfactorD](accelerate/sparsesubfactord.md)
- [SparseSubfactorPLPS](accelerate/sparsesubfactorplps.md)
- [SparseSubfactorR](accelerate/sparsesubfactorr.md)
- [SparseSubfactorRP](accelerate/sparsesubfactorrp.md)
- [SparseSubfactorSc](accelerate/sparsesubfactorsc.md)
- [SparseSubfactorSr](accelerate/sparsesubfactorsr.md)