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# BNNSPoolingFunction

Constants that describe pooling functions.

```
struct BNNSPoolingFunction
```

## Topics

### Pooling Functions

[`max`](/documentation/Accelerate/BNNSPoolingFunction/max)

A function for pooling that computes the maximum of each element in the pooling kernel.

[`average`](/documentation/Accelerate/BNNSPoolingFunction/average)

A function for pooling that computes the average of each element in the pooling kernel.

### Raw Values

[`init(_:)`](/documentation/Accelerate/BNNSPoolingFunction/init(_:))

[`init(rawValue:)`](/documentation/Accelerate/BNNSPoolingFunction/init(rawValue:))

[`rawValue`](/documentation/Accelerate/BNNSPoolingFunction/rawValue)

[`BNNSPoolingFunctionMax`](/documentation/Accelerate/BNNSPoolingFunction/BNNSPoolingFunctionMax)

A function for pooling that computes the maximum of each element in the pooling kernel.

[`BNNSPoolingFunctionUnMax`](/documentation/Accelerate/BNNSPoolingFunctionUnMax)

A function for pooling that’s the partial inverse of max pooling and sets all nonmaximal values to zero.

[`BNNSPoolingFunctionAverage`](/documentation/Accelerate/BNNSPoolingFunction/BNNSPoolingFunctionAverage)

A function for pooling that computes the average of each element in the pooling kernel.

[`BNNSPoolingFunctionAverageCountIncludePadding`](/documentation/Accelerate/BNNSPoolingFunctionAverageCountIncludePadding)

A function for pooling that computes the average of each element in the pooling kernel, including zero-padding.

[`BNNSPoolingFunctionAverageCountExcludePadding`](/documentation/Accelerate/BNNSPoolingFunctionAverageCountExcludePadding)

A function for pooling that computes the average of each element in the pooling kernel, excluding zero-padding.

[`BNNSPoolingFunctionL2Norm`](/documentation/Accelerate/BNNSPoolingFunctionL2Norm)

A function for pooling that computes the square root of the sum of squares of each element in the pooling kernel.


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