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ROOT::Math::CDFWrapper Struct Reference

Definition at line 40 of file GoFTest.cxx.

Public Types

typedef IBaseFunctionOneDim BaseFunc

Public Member Functions

 CDFWrapper (const IGenFunction &cdf, Double_t xmin=0, Double_t xmax=-1)
 ~CDFWrapper () override
IGenFunction * Clone () const override
 Clone a function.
double Derivative (const double *x) const
 Compatibility method with multi-dimensional interface for partial derivative.
double Derivative (double x) const
 Return the derivative of the function at a point x Use the private method DoDerivative.
Double_t DoEval (Double_t x) const override
 implementation of the evaluation function. Must be implemented by derived classes
void FdF (const double *x, double &f, double *df) const
 Compatibility method with multi-dimensional interface for Gradient and function evaluation.
virtual void FdF (double x, double &f, double &df) const
 Optimized method to evaluate at the same time the function value and derivative at a point x.
void Gradient (const double *x, double *g) const
 Compatibility method with multi-dimensional interface for Gradient.
virtual bool HasGradient () const
double operator() (const double *x) const
 Evaluate the function at a point x[].
double operator() (double x) const
 Evaluate the function at a point x.

Public Attributes

const IGenFunction * fCDF
Double_t fNorm
Double_t fXmax
Double_t fXmin

Private Member Functions

virtual double DoDerivative (double) const
 Function to evaluate the derivative with respect each coordinate. To be implemented by the derived class.
Inheritance diagram for ROOT::Math::CDFWrapper:
ROOT::Math::IBaseFunctionOneDim

Member Typedef Documentation

◆ BaseFunc

typedef IBaseFunctionOneDim ROOT::Math::IBaseFunctionOneDim::BaseFunc
inherited

Definition at line 161 of file IFunction.h.

Constructor & Destructor Documentation

◆ ~CDFWrapper()

ROOT::Math::CDFWrapper::~CDFWrapper ( )
inlineoverride

Definition at line 48 of file GoFTest.cxx.

◆ CDFWrapper()

ROOT::Math::CDFWrapper::CDFWrapper ( const IGenFunction & cdf,
Double_t xmin = 0,
Double_t xmax = -1 )
inline

Definition at line 50 of file GoFTest.cxx.

Member Function Documentation

◆ Clone()

IGenFunction * ROOT::Math::CDFWrapper::Clone ( ) const
inlineoverridevirtual

Clone a function.

Each derived class will implement their version of the private DoClone method.

Implements ROOT::Math::IBaseFunctionOneDim.

Definition at line 71 of file GoFTest.cxx.

◆ Derivative() [1/2]

double ROOT::Math::IBaseFunctionOneDim::Derivative ( const double * x) const
inlineinherited

Compatibility method with multi-dimensional interface for partial derivative.

Definition at line 186 of file IFunction.h.

◆ Derivative() [2/2]

double ROOT::Math::IBaseFunctionOneDim::Derivative ( double x) const
inlineinherited

Return the derivative of the function at a point x Use the private method DoDerivative.

Definition at line 183 of file IFunction.h.

◆ DoDerivative()

virtual double ROOT::Math::IBaseFunctionOneDim::DoDerivative ( double ) const
inlineprivatevirtualinherited

Function to evaluate the derivative with respect each coordinate. To be implemented by the derived class.

Reimplemented in ROOT::Math::GradFunctor1D, ROOT::Math::Polynomial, and ROOT::Math::WrappedTF1.

Definition at line 210 of file IFunction.h.

◆ DoEval()

Double_t ROOT::Math::CDFWrapper::DoEval ( Double_t x) const
inlineoverridevirtual

implementation of the evaluation function. Must be implemented by derived classes

Implements ROOT::Math::IBaseFunctionOneDim.

Definition at line 65 of file GoFTest.cxx.

◆ FdF() [1/2]

void ROOT::Math::IBaseFunctionOneDim::FdF ( const double * x,
double & f,
double * df ) const
inlineinherited

Compatibility method with multi-dimensional interface for Gradient and function evaluation.

Definition at line 202 of file IFunction.h.

◆ FdF() [2/2]

virtual void ROOT::Math::IBaseFunctionOneDim::FdF ( double x,
double & f,
double & df ) const
inlinevirtualinherited

Optimized method to evaluate at the same time the function value and derivative at a point x.

Often both value and derivatives are needed and it is often more efficient to compute them at the same time. Derived class should implement this method if performances play an important role and if it is faster to evaluate value and derivative at the same time.

Reimplemented in ROOT::Math::Polynomial, and ROOT::Math::WrappedTF1.

Definition at line 195 of file IFunction.h.

◆ Gradient()

void ROOT::Math::IBaseFunctionOneDim::Gradient ( const double * x,
double * g ) const
inlineinherited

Compatibility method with multi-dimensional interface for Gradient.

Definition at line 189 of file IFunction.h.

◆ HasGradient()

virtual bool ROOT::Math::IBaseFunctionOneDim::HasGradient ( ) const
inlinevirtualinherited

Reimplemented in ROOT::Math::IGradientFunctionOneDim.

Definition at line 179 of file IFunction.h.

◆ operator()() [1/2]

double ROOT::Math::IBaseFunctionOneDim::operator() ( const double * x) const
inlineinherited

Evaluate the function at a point x[].

Compatible method with multi-dimensional functions.

Definition at line 175 of file IFunction.h.

◆ operator()() [2/2]

double ROOT::Math::IBaseFunctionOneDim::operator() ( double x) const
inlineinherited

Evaluate the function at a point x.

Use the a pure virtual private method DoEval which must be implemented by sub-classes.

Definition at line 171 of file IFunction.h.

Member Data Documentation

◆ fCDF

const IGenFunction* ROOT::Math::CDFWrapper::fCDF

Definition at line 45 of file GoFTest.cxx.

◆ fNorm

Double_t ROOT::Math::CDFWrapper::fNorm

Definition at line 44 of file GoFTest.cxx.

◆ fXmax

Double_t ROOT::Math::CDFWrapper::fXmax

Definition at line 43 of file GoFTest.cxx.

◆ fXmin

Double_t ROOT::Math::CDFWrapper::fXmin

Definition at line 42 of file GoFTest.cxx.

The documentation for this struct was generated from the following file: