library: libTMVA
#include "TActivationTanh.h"

TMVA::TActivationTanh

class description - header file - source file
viewCVS header - viewCVS source

class TMVA::TActivationTanh: public TMVA::TActivation

Inheritance Inherited Members Includes Libraries
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Function Members (Methods)

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public:
~TActivationTanh()
static TClass*Class()
virtual Double_tEval(Double_t arg)
virtual Double_tEvalDerivative(Double_t arg)
virtual TStringGetExpression()
virtual Double_tGetMax()
virtual Double_tGetMin()
virtual TClass*IsA() const
TMVA::TActivationTanh&operator=(const TMVA::TActivationTanh&)
virtual voidShowMembers(TMemberInspector& insp, char* parent)
virtual voidStreamer(TBuffer& b)
voidStreamerNVirtual(TBuffer& b)
TMVA::TActivationTanhTActivationTanh()
TMVA::TActivationTanhTActivationTanh(const TMVA::TActivationTanh&)

Data Members

private:
TFormula*fEqnequation of tanh sigmoid
TFormula*fEqnDerivativeequation of tanh sigmoid derivative

Class Description

                                                                      
  Tanh activation function for ANN. This really simple implementation
  uses TFormulas and should probably be replaced with something more
  efficient later.
                                                                      
_______________________________________________________________________
TActivationTanh()
 constructor for tanh sigmoid (normalized in [-1,1])
~TActivationTanh()
 destructor
Double_t Eval(Double_t arg)
 evaluate the tanh
Double_t EvalDerivative(Double_t arg)
 evaluate the derivative
TString GetExpression()
 get expressions for the tanh and its derivative
TActivationTanh()
Double_t GetMin()
 minimum of the range of the activation function
{ return -1; }
Double_t GetMax()
 maximum of the range of the activation function
{ return 1; }

Author: Matt Jachowski
Last update: root/tmva $Id: TActivationTanh.cxx,v 1.6 2006/11/20 15:35:28 brun Exp $
Copyright (c) 2005: *

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