Sets the activation function for all of the hidden layers

# fann_set_activation_function_hidden

(PECL fann >= 1.0.0)

fann_set_activation_function_hidden — Sets the activation function for all of the hidden layers

### 説明

function fann_set_activation_function_hidden(resource `$ann`, int `$activation_function`): bool

Sets the activation function for all of the hidden layers.

### パラメータ

`ann`
  ニューラルネットワークリソース。
`activation_function`

  The activation functions constant.

### 戻り値

成功した場合に `true`、それ以外の場合に `false` を返します。

### 参考

- fann_set_activation_function() - Sets the activation function for supplied neuron and layer
- fann_set_activation_function_layer() - Sets the activation function for all the neurons in the supplied layer
- fann_set_activation_function_output() - Sets the activation function for the output layer
- fann_set_activation_steepness() - Sets the activation steepness for supplied neuron and layer number

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