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class AliCheb3D: public TNamed

Function Members (Methods)

public:

	AliCheb3D()
	AliCheb3D(const AliCheb3D& src)
	AliCheb3D(const char* inpFile)
	AliCheb3D(FILE* stream)
	AliCheb3D(const char* funName, Int_t DimOut, const Float_t* bmin, const Float_t* bmax, Int_t* npoints, Float_t prec = 1E-6, const Float_t* precD = 0)
	AliCheb3D(void ()(float,float) ptr, Int_t DimOut, Float_t bmin, Float_t* bmax, Int_t* npoints, Float_t prec = 1E-6, const Float_t* precD = 0)
	AliCheb3D(void ()(float,float) ptr, int DimOut, Float_t bmin, Float_t* bmax, Float_t prec = 1E-6, Bool_t run = kTRUE, const Float_t* precD = 0)
	AliCheb3D(void ()(float,float) ptr, int DimOut, Float_t bmin, Float_t* bmax, Int_t* npX, Int_t* npY, Int_t* npZ, Float_t prec = 1E-6, const Float_t* precD = 0)
virtual	~AliCheb3D()
void	TObject::AbstractMethod(const char* method) const
virtual void	TObject::AppendPad(Option_t* option = "")
virtual void	TObject::Browse(TBrowser* b)
static Int_t	CalcChebCoefs(const Float_t* funval, int np, Float_t* outCoefs, Float_t prec = -1)
static TClass*	Class()
virtual const char*	TObject::ClassName() const
virtual TObject*	TNamed::Clone(const char* newname = "") const
virtual Int_t	TNamed::Compare(const TObject* obj) const
virtual void	TNamed::Copy(TObject& named) const
virtual void	TObject::Delete(Option_t* option = "")MENU
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
void	EstimateNPoints(float prec, int** gridBC, Int_t npd1 = 30, Int_t npd2 = 30, Int_t npd3 = 30)
void	Eval(const Float_t* par, Float_t* res)
Float_t	Eval(const Float_t* par, int idim)
void	Eval(const Double_t* par, Double_t* res)
Double_t	Eval(const Double_t* par, int idim)
void	EvalDeriv(int dimd, const Float_t* par, Float_t* res)
Float_t	EvalDeriv(int dimd, const Float_t* par, int idim)
void	EvalDeriv2(int dimd1, int dimd2, const Float_t* par, Float_t* res)
Float_t	EvalDeriv2(int dimd1, int dimd2, const Float_t* par, int idim)
void	EvalDeriv3D(const Float_t* par, Float_t** dbdr)
void	EvalDeriv3D2(const Float_t* par, Float_t*** dbdrdr)
void	EvalUsrFunction(const Float_t* x, Float_t* res)
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 void	TNamed::FillBuffer(char*& buffer)
virtual TObject*	TObject::FindObject(const char* name) const
virtual TObject*	TObject::FindObject(const TObject* obj) const
Float_t*	GetBoundMax() const
Float_t	GetBoundMax(int i) const
Float_t*	GetBoundMin() const
Float_t	GetBoundMin(int i) const
AliCheb3DCalc*	GetChebCalc(int i) const
virtual Option_t*	TObject::GetDrawOption() const
static Long_t	TObject::GetDtorOnly()
virtual const char*	TObject::GetIconName() const
virtual const char*	TNamed::GetName() const
int*	GetNCNeeded(float* xyz, int DimVar, float mn, float mx, float prec, Int_t npCheck = 30)
virtual char*	TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_t	TObject::GetObjectStat()
virtual Option_t*	TObject::GetOption() const
Float_t	GetPrecision() const
virtual const char*	TNamed::GetTitle() const
virtual UInt_t	TObject::GetUniqueID() const
virtual Bool_t	TObject::HandleTimer(TTimer* timer)
virtual ULong_t	TNamed::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
virtual void	TObject::Inspect() constMENU
void	TObject::InvertBit(UInt_t f)
void	InvertSign()
virtual TClass*	IsA() const
virtual Bool_t	TObject::IsEqual(const TObject* obj) const
virtual Bool_t	TObject::IsFolder() const
Bool_t	IsInside(const Float_t* par) const
Bool_t	IsInside(const Double_t* par) const
Bool_t	TObject::IsOnHeap() const
virtual Bool_t	TNamed::IsSortable() const
Bool_t	TObject::IsZombie() const
void	LoadData(const char* inpFile)
void	LoadData(FILE* stream)
virtual void	TNamed::ls(Option_t* option = "") const
void	TObject::MayNotUse(const char* method) const
virtual Bool_t	TObject::Notify()
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)
AliCheb3D&	operator=(const AliCheb3D& rhs)
virtual void	TObject::Paint(Option_t* option = "")
virtual void	TObject::Pop()
virtual void	Print(Option_t* opt = "") 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
void	SaveData(FILE* stream = stdout) const
void	SaveData(const char* outfile, Bool_t append = kFALSE) const
virtual void	TObject::SavePrimitive(basic_ostream<char,char_traits<char> >& out, Option_t* option = "")
void	TObject::SetBit(UInt_t f)
void	TObject::SetBit(UInt_t f, Bool_t set)
virtual void	TObject::SetDrawOption(Option_t* option = "")MENU
static void	TObject::SetDtorOnly(void* obj)
virtual void	TNamed::SetName(const char* name)MENU
virtual void	TNamed::SetNameTitle(const char* name, const char* title)
static void	TObject::SetObjectStat(Bool_t stat)
virtual void	TNamed::SetTitle(const char* title = "")MENU
virtual void	TObject::SetUniqueID(UInt_t uid)
void	SetUsrFunction(const char* name)
void	SetUsrFunction(void ()(float,float*) ptr)
void	ShiftBound(int id, float dif)
virtual void	ShowMembers(TMemberInspector&)
virtual Int_t	TNamed::Sizeof() const
virtual void	Streamer(TBuffer&)
void	StreamerNVirtual(TBuffer& ClassDef_StreamerNVirtual_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
TH1*	TestRMS(int idim, int npoints = 1000, TH1* histo = 0)
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:

Int_t	ChebFit()
Int_t	ChebFit(int dmOut)
virtual void	Clear(Option_t* option = "")
void	DefineGrid(Int_t* npoints)
virtual void	TObject::DoError(int level, const char* location, const char* fmt, va_list va) const
void	EvalUsrFunction()
void	TObject::MakeZombie()
Float_t	MapToExternal(Float_t x, Int_t d) const
Double_t	MapToExternal(Double_t x, Int_t d) const
Float_t	MapToInternal(Float_t x, Int_t d) const
Double_t	MapToInternal(Double_t x, Int_t d) const
void	PrepareBoundaries(const Float_t* bmin, const Float_t* bmax)
void	SetDimOut(const int d, const float* prec = 0)
void	SetPrecision(float prec)

Data Members

public:

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

protected:

Float_t	fArgsTmp[3]	! temporary vector for coefs caluclation
Float_t	fBMax[3]	max boundaries in each dimension
Float_t	fBMin[3]	min boundaries in each dimension
Float_t	fBOffset[3]	offset for boundary mapping to [-1:1] interval
Float_t	fBScale[3]	scale for boundary mapping to [-1:1] interval
TObjArray	fChebCalc	Chebyshev parameterization for each output dimension
Int_t	fDimOut	dimension of the ouput array
Float_t*	fGrid	! temporary buffer for Chebyshef roots grid
Int_t	fGridOffs[3]	! start of grid for each dimension
Int_t	fMaxCoefs	! max possible number of coefs per parameterization
Int_t	fNPoints[3]	! number of used points in each dimension
TString	TNamed::fName	object identifier
Float_t	fPrec	requested precision
Float_t*	fResTmp	! temporary vector for results of user function caluclation
TString	TNamed::fTitle	object title
TString	fUsrFunName	! name of user macro containing the function of "void (fcn)(float,float*)" format
TMethodCall*	fUsrMacro	! Pointer to MethodCall for function from user macro
static const Float_t	fgkMinPrec	smallest precision

Class Charts

Inheritance Chart:

TNamed

←

AliCheb3D

Function documentation

AliCheb3D()

 Default constructor

AliCheb3D(const AliCheb3D& src)

 read coefs from text file

AliCheb3D(const char* inpFile)

 read coefs from text file

AliCheb3D(FILE* stream)

 read coefs from stream

AliCheb3D(const char* funName, Int_t DimOut, const Float_t* bmin, const Float_t* bmax, Int_t* npoints, Float_t prec = 1E-6, const Float_t* precD = 0)

 Construct the parameterization for the function
 funName : name of the file containing the function: void funName(Float_t * inp,Float_t * out)
 DimOut  : dimension of the vector computed by the user function
 bmin    : array of 3 elements with the lower boundaries of the region where the function is defined
 bmax    : array of 3 elements with the upper boundaries of the region where the function is defined
 npoints : array of 3 elements with the number of points to compute in each of 3 dimension
 prec    : max allowed absolute difference between the user function and computed parameterization on the requested grid
 precD   : optional array with precisions per output dimension (if >fgkMinPrec will override common prec)

AliCheb3D(void (*)(float*,float*) ptr, int DimOut, Float_t* bmin, Float_t* bmax, Float_t prec = 1E-6, Bool_t run = kTRUE, const Float_t* precD = 0)

 Construct the parameterization for the function
 ptr     : pointer on the function: void fun(Float_t * inp,Float_t * out)
 DimOut  : dimension of the vector computed by the user function
 bmin    : array of 3 elements with the lower boundaries of the region where the function is defined
 bmax    : array of 3 elements with the upper boundaries of the region where the function is defined
 npoints : array of 3 elements with the number of points to compute in each of 3 dimension
 prec    : max allowed absolute difference between the user function and computed parameterization on the requested grid
 precD   : optional array with precisions per output dimension (if >fgkMinPrec will override common prec)

AliCheb3D(void (*)(float*,float*) ptr, int DimOut, Float_t* bmin, Float_t* bmax, Int_t* npX, Int_t* npY, Int_t* npZ, Float_t prec = 1E-6, const Float_t* precD = 0)

 Construct very economic  parameterization for the function
 ptr     : pointer on the function: void fun(Float_t * inp,Float_t * out)
 DimOut  : dimension of the vector computed by the user function
 bmin    : array of 3 elements with the lower boundaries of the region where the function is defined
 bmax    : array of 3 elements with the upper boundaries of the region where the function is defined
 npX     : array of 3 elements with the number of points to compute in each dimension for 1st component
 npY     : array of 3 elements with the number of points to compute in each dimension for 2nd component
 npZ     : array of 3 elements with the number of points to compute in each dimension for 3d  component
 prec    : max allowed absolute difference between the user function and computed parameterization on the requested grid
 precD   : optional array with precisions per output dimension (if >fgkMinPrec will override common prec)

AliCheb3D(void (*)(float*,float*) ptr, int DimOut, Float_t* bmin, Float_t* bmax, Float_t prec = 1E-6, Bool_t run = kTRUE, const Float_t* precD = 0)

 Construct very economic  parameterization for the function with automatic calculation of the root's grid
 ptr     : pointer on the function: void fun(Float_t * inp,Float_t * out)
 DimOut  : dimension of the vector computed by the user function
 bmin    : array of 3 elements with the lower boundaries of the region where the function is defined
 bmax    : array of 3 elements with the upper boundaries of the region where the function is defined
 prec    : max allowed absolute difference between the user function and computed parameterization on the requested grid
 precD   : optional array with precisions per output dimension (if >fgkMinPrec will override common prec)

AliCheb3D& operator=(const AliCheb3D& rhs)

 assignment operator

void Clear(Option_t* option = "")

 clear all dynamic structures

void Print(Option_t* opt = "") const

 print info

void PrepareBoundaries(const Float_t* bmin, const Float_t* bmax)

 Set and check boundaries defined by user, prepare coefficients for their conversion to [-1:1] interval

void EvalUsrFunction()

 call user supplied function

void SetUsrFunction(const char* name)

 load user macro with function definition and compile it

void SetUsrFunction(void (*)(float*,float*) ptr)

 assign user training function

void EvalUsrFunction(const Float_t* x, Float_t* res)

 evaluate user function value

Int_t CalcChebCoefs(const Float_t* funval, int np, Float_t* outCoefs, Float_t prec = -1)

 Calculate Chebyshev coeffs using precomputed function values at np roots.
 If prec>0, estimate the highest coeff number providing the needed precision

void DefineGrid(Int_t* npoints)

 prepare the grid of Chebyshev roots in each dimension

Int_t ChebFit()

 prepare parameterization for all output dimensions

Int_t ChebFit(int dmOut)

 prepare paramaterization of 3D function for dmOut-th dimension

void SaveData(const char* outfile, Bool_t append = kFALSE) const

 writes coefficients data to output text file, optionallt appending on the end of existing file

void SaveData(FILE* stream = stdout) const

 writes coefficients data to existing output stream

void InvertSign()

 invert the sign of all parameterizations

void LoadData(const char* inpFile)

 load coefficients data from txt file

void LoadData(FILE* stream)

 load coefficients data from stream

void SetDimOut(const int d, const float* prec = 0)

 init output dimensions

void ShiftBound(int id, float dif)

 modify the bounds of the grid

TH1* TestRMS(int idim, int npoints = 1000, TH1* histo = 0)

 fills the difference between the original function and parameterization (for idim-th component of the output)
 to supplied histogram. Calculations are done in npoints random points.
 If the hostgram was not supplied, it will be created. It is up to the user to delete it!

void EstimateNPoints(float prec, int** gridBC, Int_t npd1 = 30, Int_t npd2 = 30, Int_t npd3 = 30)

 Estimate number of points to generate a training data

int* GetNCNeeded(float* xyz, int DimVar, float mn, float mx, float prec, Int_t npCheck = 30)

 estimate needed number of chebyshev coefs for given function description in DimVar dimension
 The values for two other dimensions must be set beforehand

Bool_t IsInside(const Float_t* par) const

Bool_t IsInside(const Double_t* par) const

void Eval(const Float_t* par, Float_t* res)

void Eval(const Double_t* par, Double_t* res)

Double_t Eval(const Double_t* par, int idim)

Float_t Eval(const Float_t* par, int idim)

void EvalDeriv3D(const Float_t* par, Float_t** dbdr)

void EvalDeriv3D2(const Float_t* par, Float_t*** dbdrdr)

void EvalDeriv(int dimd, const Float_t* par, Float_t* res)

void EvalDeriv2(int dimd1, int dimd2, const Float_t* par, Float_t* res)

Float_t EvalDeriv(int dimd, const Float_t* par, int idim)

Float_t EvalDeriv2(int dimd1, int dimd2, const Float_t* par, int idim)