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Reference Guide
ROOT::Math::WrappedParamFunction< FuncPtr > Class Template Reference

template<typename FuncPtr = FreeParamMultiFunctionPtr>
class ROOT::Math::WrappedParamFunction< FuncPtr >

WrappedParamFunction class to wrap any multi-dimensional function pbject implementing the operator()(const double * x, const double * p) in an interface-like IParamFunction with a vector storing and caching internally the parameter values.

Definition at line 41 of file WrappedParamFunction.h.

Public Member Functions

 WrappedParamFunction (FuncPtr func, unsigned int dim=1, unsigned int npar=0, double *par=0)
 Constructor a wrapped function from a pointer to a callable object, the function dimension and number of parameters which are set to zero by default. More...
 
template<class Iterator >
 WrappedParamFunction (FuncPtr func, unsigned int dim, Iterator begin, Iterator end)
 

Constructor a wrapped function from a non-const pointer to a callable object, the function dimension and number of parameters which are set to zero by default This constructor is needed in the case FuncPtr is a std::unique_ptr which has a copy ctor taking non const objects More...
 
IMultiGenFunctionClone () const
 

Constructor a wrapped function from a non - const pointer to a callable object, the function dimension and an iterator specifying begin and end of parameters. More...
 
unsigned int NDim () const
 Retrieve the dimension of the function. More...
 
unsigned int NPar () const
 Return the number of Parameters. More...
 
const double * Parameters () const
 Access the parameter values. More...
 
void SetParameters (const double *p)
 Set the parameter values. More...
 
- Public Member Functions inherited from ROOT::Math::IParametricFunctionMultiDimTempl< T >
operator() (const T *x, const double *p) const
 
Evaluate function at a point x and for given parameters p. More...
 
operator() (const T *x) const
 
- Public Member Functions inherited from ROOT::Math::IBaseFunctionMultiDimTempl< T >
 IBaseFunctionMultiDimTempl ()
 
virtual ~IBaseFunctionMultiDimTempl ()
 virtual destructor More...
 
operator() (const T *x) const
 Evaluate the function at a point x[]. More...
 
- Public Member Functions inherited from ROOT::Math::IBaseParam
virtual ~IBaseParam ()
 Virtual Destructor (no operations) More...
 
virtual std::string ParameterName (unsigned int i) const
 Return the name of the i-th parameter (starting from zero) Overwrite if want to avoid the default name ("Par_0, Par_1, ...") More...
 

Private Member Functions

double DoEvalPar (const double *x, const double *p) const
 evaluate the function given values and parameters (requested interface) More...
 

Private Attributes

unsigned int fDim
 
FuncPtr fFunc
 
std::vector< double > fParams
 

Additional Inherited Members

- Public Types inherited from ROOT::Math::IParametricFunctionMultiDimTempl< T >
typedef IBaseFunctionMultiDimTempl< T > BaseFunc
 
- Public Types inherited from ROOT::Math::IBaseFunctionMultiDimTempl< T >
typedef T BackendType
 
typedef IBaseFunctionMultiDimTempl< T > BaseFunc
 

#include <Math/WrappedParamFunction.h>

Inheritance diagram for ROOT::Math::WrappedParamFunction< FuncPtr >:
[legend]

Constructor & Destructor Documentation

◆ WrappedParamFunction() [1/2]

template<typename FuncPtr = FreeParamMultiFunctionPtr>
ROOT::Math::WrappedParamFunction< FuncPtr >::WrappedParamFunction ( FuncPtr  func,
unsigned int  dim = 1,
unsigned int  npar = 0,
double *  par = 0 
)
inline

Constructor a wrapped function from a pointer to a callable object, the function dimension and number of parameters which are set to zero by default.

Definition at line 49 of file WrappedParamFunction.h.

◆ WrappedParamFunction() [2/2]

template<typename FuncPtr = FreeParamMultiFunctionPtr>
template<class Iterator >
ROOT::Math::WrappedParamFunction< FuncPtr >::WrappedParamFunction ( FuncPtr  func,
unsigned int  dim,
Iterator  begin,
Iterator  end 
)
inline



Constructor a wrapped function from a non-const pointer to a callable object, the function dimension and number of parameters which are set to zero by default This constructor is needed in the case FuncPtr is a std::unique_ptr which has a copy ctor taking non const objects

Constructor a wrapped function from a pointer to a callable object, the function dimension and an iterator specifying begin and end of parameters

Definition at line 75 of file WrappedParamFunction.h.

Member Function Documentation

◆ Clone()

template<typename FuncPtr = FreeParamMultiFunctionPtr>
IMultiGenFunction* ROOT::Math::WrappedParamFunction< FuncPtr >::Clone ( ) const
inlinevirtual



Constructor a wrapped function from a non - const pointer to a callable object, the function dimension and an iterator specifying begin and end of parameters.

This constructor is needed in the case FuncPtr is a std::unique_ptr which has a copy ctor taking non const objectsclone the function

Implements ROOT::Math::IBaseFunctionMultiDimTempl< T >.

Definition at line 93 of file WrappedParamFunction.h.

◆ DoEvalPar()

template<typename FuncPtr = FreeParamMultiFunctionPtr>
double ROOT::Math::WrappedParamFunction< FuncPtr >::DoEvalPar ( const double *  x,
const double *  p 
) const
inlineprivate

evaluate the function given values and parameters (requested interface)

Definition at line 113 of file WrappedParamFunction.h.

◆ NDim()

template<typename FuncPtr = FreeParamMultiFunctionPtr>
unsigned int ROOT::Math::WrappedParamFunction< FuncPtr >::NDim ( ) const
inlinevirtual

Retrieve the dimension of the function.

Implements ROOT::Math::IBaseFunctionMultiDimTempl< T >.

Definition at line 107 of file WrappedParamFunction.h.

◆ NPar()

template<typename FuncPtr = FreeParamMultiFunctionPtr>
unsigned int ROOT::Math::WrappedParamFunction< FuncPtr >::NPar ( ) const
inlinevirtual

Return the number of Parameters.

Implements ROOT::Math::IBaseParam.

Definition at line 105 of file WrappedParamFunction.h.

◆ Parameters()

template<typename FuncPtr = FreeParamMultiFunctionPtr>
const double* ROOT::Math::WrappedParamFunction< FuncPtr >::Parameters ( ) const
inlinevirtual

Access the parameter values.

Implements ROOT::Math::IBaseParam.

Definition at line 97 of file WrappedParamFunction.h.

◆ SetParameters()

template<typename FuncPtr = FreeParamMultiFunctionPtr>
void ROOT::Math::WrappedParamFunction< FuncPtr >::SetParameters ( const double *  p)
inlinevirtual

Set the parameter values.

Parameters
pvector of doubles containing the parameter values.

to be defined: can user change number of params ? At the moment no.

Implements ROOT::Math::IBaseParam.

Definition at line 101 of file WrappedParamFunction.h.

Member Data Documentation

◆ fDim

template<typename FuncPtr = FreeParamMultiFunctionPtr>
unsigned int ROOT::Math::WrappedParamFunction< FuncPtr >::fDim
private

Definition at line 119 of file WrappedParamFunction.h.

◆ fFunc

template<typename FuncPtr = FreeParamMultiFunctionPtr>
FuncPtr ROOT::Math::WrappedParamFunction< FuncPtr >::fFunc
private

Definition at line 118 of file WrappedParamFunction.h.

◆ fParams

template<typename FuncPtr = FreeParamMultiFunctionPtr>
std::vector<double> ROOT::Math::WrappedParamFunction< FuncPtr >::fParams
private

Definition at line 120 of file WrappedParamFunction.h.


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