fann_set_activation_function

fann_set_activation_function

Sets the activation function for supplied neuron and layer

bool **fann_set_activation_function** resource $ann int $activation_function int $layer int $neuron

Set the activation function for neuron number in layer number , counting the input layer as layer 0. neuron``layer

It is not possible to set activation functions for the neurons in the input layer.

When choosing an activation function it is important to note that the activation functions have different range. is e.g. in the 0 - 1 range while is in the -1 - 1 range and is unbound. FANN_SIGMOID``FANN_SIGMOID_SYMMETRIC``FANN_LINEAR

The supplied activation_function value must be one of the constants. activation functions

The return value is one of the constants. activation functions

ann``activation_function The constant. activation functions

layerLayer number.

neuronNeuron number.

fann_set_activation_function_layer``fann_set_activation_function_hidden``fann_set_activation_function_output``fann_set_activation_steepness``fann_get_activation_function