---
title: num_groups
framework: accelerate
role: symbol
role_heading: Instance Property
path: accelerate/bnnslayerparametersnormalization/num_groups
---

# num_groups

The number of groups over which the layer computes normalization statistics.

## Declaration

```swift
var num_groups: Int
```

## See Also

### Instance Properties

- [i_desc](accelerate/bnnslayerparametersnormalization/i_desc.md)
- [o_desc](accelerate/bnnslayerparametersnormalization/o_desc.md)
- [beta_desc](accelerate/bnnslayerparametersnormalization/beta_desc.md)
- [gamma_desc](accelerate/bnnslayerparametersnormalization/gamma_desc.md)
- [moving_mean_desc](accelerate/bnnslayerparametersnormalization/moving_mean_desc.md)
- [moving_variance_desc](accelerate/bnnslayerparametersnormalization/moving_variance_desc.md)
- [momentum](accelerate/bnnslayerparametersnormalization/momentum.md)
- [epsilon](accelerate/bnnslayerparametersnormalization/epsilon.md)
- [activation](accelerate/bnnslayerparametersnormalization/activation.md)
- [normalization_axis](accelerate/bnnslayerparametersnormalization/normalization_axis.md)