---
title: pooling_function
framework: accelerate
role: symbol
role_heading: Instance Property
path: accelerate/bnnspoolinglayerparameters/pooling_function
---

# pooling_function

The pooling function to apply to each sample.

## Declaration

```swift
var pooling_function: BNNSPoolingFunction
```

## See Also

### Instance Properties

- [activation](accelerate/bnnspoolinglayerparameters/activation.md)
- [bias](accelerate/bnnspoolinglayerparameters/bias.md)
- [in_channels](accelerate/bnnspoolinglayerparameters/in_channels.md)
- [k_height](accelerate/bnnspoolinglayerparameters/k_height.md)
- [k_width](accelerate/bnnspoolinglayerparameters/k_width.md)
- [out_channels](accelerate/bnnspoolinglayerparameters/out_channels.md)
- [x_padding](accelerate/bnnspoolinglayerparameters/x_padding.md)
- [x_stride](accelerate/bnnspoolinglayerparameters/x_stride.md)
- [y_padding](accelerate/bnnspoolinglayerparameters/y_padding.md)
- [y_stride](accelerate/bnnspoolinglayerparameters/y_stride.md)