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ROOT
Reference Guide |
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ROOT
Reference Guide |
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IParamFunction interface (abstract class) describing multi-dimensional parameteric functions It is a derived class from ROOT::Math::IBaseFunctionMultiDim and ROOT::Math::IBaseParam.
Provides the interface for evaluating a function passing a coordinate vector and a parameter vector.
Definition at line 104 of file IParamFunction.h.
Public Types | |
| typedef IBaseFunctionMultiDimTempl< T > | BaseFunc |
 Public Types inherited from ROOT::Math::IBaseFunctionMultiDimTempl< T > | |
| typedef T | BackendType |
| typedef IBaseFunctionMultiDimTempl< T > | BaseFunc |
Public Member Functions | |
| T | operator() (const T *x) const |
| T | operator() (const T *x, const double *p) const |
| Evaluate function at a point x and for given parameters p. More... | |
| Public Member Functions inherited from ROOT::Math::IBaseFunctionMultiDimTempl< T > | |
| IBaseFunctionMultiDimTempl () | |
| virtual | ~IBaseFunctionMultiDimTempl () |
| virtual destructor More... | |
| virtual IBaseFunctionMultiDimTempl< T > * | Clone () const =0 |
| Clone a function. More... | |
| virtual unsigned int | NDim () const =0 |
| Retrieve the dimension of the function. More... | |
| T | 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 unsigned int | NPar () const =0 |
| Return the number of Parameters. 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... | |
| virtual const double * | Parameters () const =0 |
| Access the parameter values. More... | |
| virtual void | SetParameters (const double *p)=0 |
| Set the parameter values. More... | |
Private Member Functions | |
| virtual T | DoEval (const T *x) const |
| Implement the ROOT::Math::IBaseFunctionMultiDim interface DoEval(x) using the cached parameter values. More... | |
| virtual T | DoEvalPar (const T *x, const double *p) const =0 |
| Implementation of the evaluation function using the x values and the parameters. More... | |
#include <Math/IParamFunction.h>
| typedef IBaseFunctionMultiDimTempl<T> ROOT::Math::IParametricFunctionMultiDimTempl< T >::BaseFunc |
Definition at line 108 of file IParamFunction.h.
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inlineprivatevirtual |
Implement the ROOT::Math::IBaseFunctionMultiDim interface DoEval(x) using the cached parameter values.
Implements ROOT::Math::IBaseFunctionMultiDimTempl< T >.
Reimplemented in ROOT::Math::WrappedParamFunctionGen< FuncPtr >, ROOT::Math::WrappedMultiTF1Templ< T >, and ROOT::Math::IParametricGradFunctionMultiDimTempl< T >.
Definition at line 140 of file IParamFunction.h.
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privatepure virtual |
Implementation of the evaluation function using the x values and the parameters.
Must be implemented by derived classes
Implemented in ROOT::Math::MultiDimParamFunctionAdapter, ROOT::Math::WrappedParamFunction< FuncPtr >, ROOT::Math::WrappedParamFunctionGen< FuncPtr >, ROOT::Math::WrappedMultiTF1Templ< T >, and ROOT::Math::IParametricGradFunctionMultiDimTempl< T >.
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inline |
Definition at line 125 of file IParamFunction.h.
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inline |
Evaluate function at a point x and for given parameters p.
This method does not change the internal status of the function (internal parameter values). If for some reason one prefers caching the parameter values, SetParameters(p) and then operator()(x) should be called. Use the pure virtual function DoEvalPar to implement it
Definition at line 120 of file IParamFunction.h.
