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class TMVA::TNeuron: public TObject


 Neuron class used by TMVA artificial neural network methods

Function Members (Methods)

public:

virtual	~TNeuron()
void	TObject::AbstractMethod(const char* method) const
void	AddPostLink(TMVA::TSynapse* post)
void	AddPreLink(TMVA::TSynapse* pre)
void	AdjustSynapseWeights()
virtual void	TObject::AppendPad(Option_t* option = "")
virtual void	TObject::Browse(TBrowser* b)
void	CalculateActivationValue()
void	CalculateDelta()
void	CalculateValue()
static TClass*	Class()
virtual const char*	TObject::ClassName() const
virtual void	TObject::Clear(Option_t* = "")
virtual TObject*	TObject::Clone(const char* newname = "") const
virtual Int_t	TObject::Compare(const TObject* obj) const
virtual void	TObject::Copy(TObject& object) const
virtual void	TObject::Delete(Option_t* option = "")MENU
void	DeletePreLinks()
virtual Int_t	TObject::DistancetoPrimitive(Int_t px, Int_t py)
virtual void	TObject::Draw(Option_t* option = "")
virtual void	TObject::DrawClass() constMENU
virtual TObject*	TObject::DrawClone(Option_t* option = "") constMENU
virtual void	TObject::Dump() constMENU
virtual void	TObject::Error(const char* method, const char* msgfmt) const
virtual void	TObject::Execute(const char* method, const char* params, Int_t* error = 0)
virtual void	TObject::Execute(TMethod* method, TObjArray* params, Int_t* error = 0)
virtual void	TObject::ExecuteEvent(Int_t event, Int_t px, Int_t py)
virtual void	TObject::Fatal(const char* method, const char* msgfmt) const
virtual TObject*	TObject::FindObject(const char* name) const
virtual TObject*	TObject::FindObject(const TObject* obj) const
void	ForceValue(Double_t value)
Double_t	GetActivationValue() const
Double_t	GetDEDw() const
Double_t	GetDelta() const
virtual Option_t*	TObject::GetDrawOption() const
static Long_t	TObject::GetDtorOnly()
virtual const char*	TObject::GetIconName() const
virtual const char*	TObject::GetName() const
virtual char*	TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_t	TObject::GetObjectStat()
virtual Option_t*	TObject::GetOption() const
virtual const char*	TObject::GetTitle() const
virtual UInt_t	TObject::GetUniqueID() const
Double_t	GetValue() const
virtual Bool_t	TObject::HandleTimer(TTimer* timer)
virtual ULong_t	TObject::Hash() const
virtual void	TObject::Info(const char* method, const char* msgfmt) const
virtual Bool_t	TObject::InheritsFrom(const char* classname) const
virtual Bool_t	TObject::InheritsFrom(const TClass* cl) const
void	InitSynapseDeltas()
virtual void	TObject::Inspect() constMENU
void	TObject::InvertBit(UInt_t f)
virtual TClass*	IsA() const
virtual Bool_t	TObject::IsEqual(const TObject* obj) const
virtual Bool_t	TObject::IsFolder() const
Bool_t	IsInputNeuron() const
Bool_t	TObject::IsOnHeap() const
Bool_t	IsOutputNeuron() const
virtual Bool_t	TObject::IsSortable() const
Bool_t	TObject::IsZombie() const
virtual void	TObject::ls(Option_t* option = "") const
void	TObject::MayNotUse(const char* method) const
virtual Bool_t	TObject::Notify()
Int_t	NumPostLinks() const
Int_t	NumPreLinks() const
void	TObject::Obsolete(const char* method, const char* asOfVers, const char* removedFromVers) const
static void	TObject::operator delete(void* ptr)
static void	TObject::operator delete(void* ptr, void* vp)
static void	TObject::operator delete[](void* ptr)
static void	TObject::operator delete[](void* ptr, void* vp)
void*	TObject::operator new(size_t sz)
void*	TObject::operator new(size_t sz, void* vp)
void*	TObject::operator new[](size_t sz)
void*	TObject::operator new[](size_t sz, void* vp)
TMVA::TNeuron&	operator=(const TMVA::TNeuron&)
virtual void	TObject::Paint(Option_t* option = "")
virtual void	TObject::Pop()
TMVA::TSynapse*	PostLinkAt(Int_t index) const
TMVA::TSynapse*	PreLinkAt(Int_t index) const
virtual void	Print(Option_t* = "") const
void	PrintActivationEqn()
void	PrintPostLinks() const
void	PrintPreLinks() const
virtual Int_t	TObject::Read(const char* name)
virtual void	TObject::RecursiveRemove(TObject* obj)
void	TObject::ResetBit(UInt_t f)
virtual void	TObject::SaveAs(const char* filename = "", Option_t* option = "") constMENU
virtual void	TObject::SavePrimitive(ostream& out, Option_t* option = "")
void	SetActivationEqn(TMVA::TActivation* activation)
void	SetBiasNeuron()
void	TObject::SetBit(UInt_t f)
void	TObject::SetBit(UInt_t f, Bool_t set)
void	SetDEDw(Double_t DEDw)
virtual void	TObject::SetDrawOption(Option_t* option = "")MENU
static void	TObject::SetDtorOnly(void* obj)
void	SetError(Double_t error)
void	SetInputCalculator(TMVA::TNeuronInput* calculator)
void	SetInputNeuron()
static void	TObject::SetObjectStat(Bool_t stat)
void	SetOutputNeuron()
virtual void	TObject::SetUniqueID(UInt_t uid)
virtual void	ShowMembers(TMemberInspector& insp)
virtual void	Streamer(TBuffer& b)
void	StreamerNVirtual(TBuffer& b)
virtual void	TObject::SysError(const char* method, const char* msgfmt) const
Bool_t	TObject::TestBit(UInt_t f) const
Int_t	TObject::TestBits(UInt_t f) const
TMVA::TNeuron	TNeuron()
TMVA::TNeuron	TNeuron(const TMVA::TNeuron&)
void	UpdateSynapsesBatch()
void	UpdateSynapsesSequential()
virtual void	TObject::UseCurrentStyle()
virtual void	TObject::Warning(const char* method, const char* msgfmt) const
virtual Int_t	TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0)
virtual Int_t	TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) const

protected:

virtual void	TObject::DoError(int level, const char* location, const char* fmt, va_list va) const
void	TObject::MakeZombie()

private:

void	DeleteLinksArray(TObjArray*& links)
void	InitNeuron()
TMVA::MsgLogger&	Log() const
void	NullifyLinks(TObjArray*& links)
Int_t	NumLinks(TObjArray* links) const
void	PrintLinks(TObjArray* links) const
void	PrintMessage(TMVA::EMsgType, TString message)

Data Members

public:

enum TObject::EStatusBits {	kCanDelete
	kMustCleanup
	kObjInCanvas
	kIsReferenced
	kHasUUID
	kCannotPick
	kNoContextMenu
	kInvalidObject
};
enum TObject::[unnamed] {	kIsOnHeap
	kNotDeleted
	kZombie
	kBitMask
	kSingleKey
	kOverwrite
	kWriteDelete
};

private:

TMVA::TActivation*	fActivation	activation equation
Double_t	fActivationValue	activation/output value
Double_t	fDEDw	sum of all deltas
Double_t	fDelta	error field of neuron
Double_t	fError	error, only set for output neurons
Bool_t	fForcedValue	flag for forced input value
TMVA::TNeuronInput*	fInputCalculator	input calculator
TObjArray*	fLinksIn	array of input synapses
TObjArray*	fLinksOut	array of output synapses
Double_t	fValue	input value
static TMVA::MsgLogger*	fgLogger	! message logger, static to save resources

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

TNeuron()

 standard constructor

~TNeuron()

 destructor

void InitNeuron()

 initialize the neuron, most variables still need to be set via setters

void ForceValue(Double_t value)

 force the value, typically for input and bias neurons

void CalculateValue()

 calculate neuron input

void CalculateActivationValue()

 calculate neuron activation/output

void CalculateDelta()

 calculate error field

void SetInputCalculator(TMVA::TNeuronInput* calculator)

 set input calculator

void SetActivationEqn(TMVA::TActivation* activation)

 set activation equation

void AddPreLink(TMVA::TSynapse* pre)

 add synapse as a pre-link to this neuron

void AddPostLink(TMVA::TSynapse* post)

 add synapse as a post-link to this neuron

void DeletePreLinks()

 delete all pre-links

void DeleteLinksArray(TObjArray*& links)

 delete an array of TSynapses

void SetError(Double_t error)

 set error, this should only be done for an output neuron

void UpdateSynapsesBatch()

 update and adjust the pre-synapses for each neuron (input neuron has no pre-synapse)
 this method should only be called in batch mode

void UpdateSynapsesSequential()

 update the pre-synapses for each neuron (input neuron has no pre-synapse)
 this method should only be called in sequential mode

void AdjustSynapseWeights()

 adjust the pre-synapses' weights for each neuron (input neuron has no pre-synapse)
 this method should only be called in batch mode

void InitSynapseDeltas()

 initialize the error fields of all pre-neurons
 this method should only be called in batch mode

void PrintLinks(TObjArray* links) const

 print an array of TSynapses, for debugging

void PrintActivationEqn()

 print activation equation, for debugging

void PrintMessage(TMVA::EMsgType , TString message)

 print message, for debugging

TNeuron()

Double_t GetValue() const

 inlined functions

{ return fValue; }

Double_t GetActivationValue() const

{ return fActivationValue; }

Double_t GetDelta() const

{ return fDelta; }

Double_t GetDEDw() const

{ return fDEDw; }

Int_t NumPreLinks() const

{ return NumLinks(fLinksIn); }

Int_t NumPostLinks() const

{ return NumLinks(fLinksOut); }

TSynapse* PreLinkAt(Int_t index) const

{ return (TSynapse*)fLinksIn->At(index); }

TSynapse* PostLinkAt(Int_t index) const

{ return (TSynapse*)fLinksOut->At(index); }

void SetInputNeuron()

{ NullifyLinks(fLinksIn); }

void SetOutputNeuron()

{ NullifyLinks(fLinksOut); }

void SetBiasNeuron()

{ NullifyLinks(fLinksIn); }

void SetDEDw(Double_t DEDw)

{ fDEDw = DEDw; }

Bool_t IsInputNeuron() const

{ return fLinksIn == NULL; }

Bool_t IsOutputNeuron() const

{ return fLinksOut == NULL; }

void PrintPreLinks() const

{ PrintLinks(fLinksIn); return; }

void PrintPostLinks() const

{ PrintLinks(fLinksOut); return; }

void Print(Option_t* = "") const

Int_t NumLinks(TObjArray* links) const

 inlined helper functions

void NullifyLinks(TObjArray*& links)