C# Class SharpNeat.Network.NullFn

Null activation function. Returns zero regardless of input.

Inheritance: IActivationFunction

Show file Open project: colgreen/sharpneat

Public Properties

Property	Type	Description
__DefaultInstance	IActivationFunction

Public Methods

Method	Description
Calculate ( double x, double auxArgs ) : double	Calculates the output value for the specified input value.
Calculate ( float x, float auxArgs ) : float	Calculates the output value for the specified input value with float/single precision. This single precision overload of Calculate() will be used in neural network code that has been specifically written to use floats instead of doubles.
GetRandomAuxArgs ( XorShiftRandom rng, double connectionWeightRange ) : double[]	For activation functions that accept auxiliary arguments; generates random initial values for aux arguments for newly added nodes (from an 'add neuron' mutation).
MutateAuxArgs ( double auxArgs, XorShiftRandom rng, SharpNeat.Utility.ZigguratGaussianSampler gaussianSampler, double connectionWeightRange ) : void	Genetic mutation for auxiliary argument data.

Method Details

Calculate() public method

Calculates the output value for the specified input value.

public Calculate ( double x, double auxArgs ) : double
x	double
auxArgs	double
return	double

Calculate() public method

Calculates the output value for the specified input value with float/single precision. This single precision overload of Calculate() will be used in neural network code that has been specifically written to use floats instead of doubles.

public Calculate ( float x, float auxArgs ) : float
x	float
auxArgs	float
return	float

GetRandomAuxArgs() public method

For activation functions that accept auxiliary arguments; generates random initial values for aux arguments for newly added nodes (from an 'add neuron' mutation).

public GetRandomAuxArgs ( XorShiftRandom rng, double connectionWeightRange ) : double[]
rng	XorShiftRandom
connectionWeightRange	double
return	double[]

MutateAuxArgs() public method

Genetic mutation for auxiliary argument data.

public MutateAuxArgs ( double auxArgs, XorShiftRandom rng, SharpNeat.Utility.ZigguratGaussianSampler gaussianSampler, double connectionWeightRange ) : void
auxArgs	double
rng	XorShiftRandom
gaussianSampler	SharpNeat.Utility.ZigguratGaussianSampler
connectionWeightRange	double
return	void

Property Details

__DefaultInstance public static property

Default instance provided as a public static field.

public static IActivationFunction __DefaultInstance
return	IActivationFunction