---
title: "createTemporaryWeightGradientMatrices(_:dataType:commandBuffer:)"
framework: metalperformanceshaders
role: symbol
role_heading: Instance Method
path: "metalperformanceshaders/mpsrnnmatrixtraininglayer/createtemporaryweightgradientmatrices(_:datatype:commandbuffer:)"
---

# createTemporaryWeightGradientMatrices(_:dataType:commandBuffer:)

## Declaration

```swift
func createTemporaryWeightGradientMatrices(_ matricesOut: NSMutableArray, dataType: MPSDataType, commandBuffer: any MTLCommandBuffer)
```