Neuron.h

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#ifndef GRT_NEURON_HEADER
#define GRT_NEURON_HEADER

#include "../../../Util/GRTCommon.h"

GRT_BEGIN_NAMESPACE

class GRT_API Neuron{
public:
    enum Type{LINEAR=0,SIGMOID,BIPOLAR_SIGMOID,TANH,NUMBER_OF_ACTIVATION_FUNCTIONS};
    
    Neuron();

    Neuron( const Neuron &rhs );

    ~Neuron();

    Neuron& operator=(const Neuron &rhs);
    
    bool init(const UINT numInputs,const Type actvationFunction,Random &random,const Float minWeightRange = -0.1, const Float maxWeightRange = 0.1,const Float minBiasRange = -0.1,const Float maxBiasRange = 0.1);
    void clear();
    Float fire(const VectorFloat &x);
    Float getDerivative(const Float &y);
    
    static bool validateActivationFunction(const Type activationFunction);
    
    Float gamma;
    Float bias;
    Float previousBiasUpdate;
    VectorFloat weights;
    VectorFloat previousUpdate;
    UINT numInputs;
    UINT activationFunction;
};

GRT_END_NAMESPACE

#endif //GRT_NEURON_HEADER