fann_set_activation_function
(PECL fann >= 1.0.0)
fann_set_activation_function — Sets the activation function for supplied neuron and layer
Description
function fann_set_activation_function(
resource $ann,
int $activation_function,
int $layer,
int $neuron):
bool
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.
FANN_SIGMOID is e.g. in the 0 - 1 range while FANN_SIGMOID_SYMMETRIC is
in the -1 - 1 range and FANN_LINEAR is unbound.
The supplied activation_function value must be
one of the activation functions constants.
The return value is one of the activation functions constants.
Return Values
Returns true on success, or false otherwise.