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GSLMultiMinimizer class , for minimizing multi-dimensional function using derivatives.

Definition at line 54 of file GSLMultiMinimizer.h.

Public Member Functions

 GSLMultiMinimizer (const GSLMultiMinimizer &)=delete
 GSLMultiMinimizer (GSLMultiMinimizer &&)=delete
 GSLMultiMinimizer (ROOT::Math::EGSLMinimizerType type)
 Default constructor.
 ~GSLMultiMinimizer ()
 Destructor.
void CreateMinimizer (unsigned int n)
 create the minimizer from the type and size
doubleGradient () const
 gradient value at the minimum
int Iterate ()
double Minimum () const
 function value at the minimum
std::string Name () const
GSLMultiMinimizeroperator= (const GSLMultiMinimizer &rhs)=delete
GSLMultiMinimizeroperator= (GSLMultiMinimizer &&rhs)=delete
int Restart ()
 restart minimization from current point
int Set (const ROOT::Math::IMultiGradFunction &func, const double *x, double stepSize, double tol)
 set the function to be minimize the initial minimizer parameters, step size and tolerance in the line search
int TestGradient (const double *g, double absTol) const
 test gradient (require a vector gradient)
int TestGradient (double absTol) const
 test gradient (ask from minimizer gradient vector)
doubleX () const
 x values at the minimum

Private Attributes

GSLMultiMinDerivFunctionWrapper fFunc
gsl_multimin_fdfminimizer * fMinimizer
const gsl_multimin_fdfminimizer_type * fType
gsl_vector * fVec

#include </home/stephan/code/root-2/math/mathmore/src/GSLMultiMinimizer.h>

Constructor & Destructor Documentation

◆ GSLMultiMinimizer() [1/3]

ROOT::Math::GSLMultiMinimizer::GSLMultiMinimizer ( ROOT::Math::EGSLMinimizerType type)
inline

Default constructor.

Definition at line 61 of file GSLMultiMinimizer.h.

◆ ~GSLMultiMinimizer()

ROOT::Math::GSLMultiMinimizer::~GSLMultiMinimizer ( )
inline

Destructor.

Definition at line 99 of file GSLMultiMinimizer.h.

◆ GSLMultiMinimizer() [2/3]

ROOT::Math::GSLMultiMinimizer::GSLMultiMinimizer ( const GSLMultiMinimizer & )
delete

◆ GSLMultiMinimizer() [3/3]

ROOT::Math::GSLMultiMinimizer::GSLMultiMinimizer ( GSLMultiMinimizer && )
delete

Member Function Documentation

◆ CreateMinimizer()

void ROOT::Math::GSLMultiMinimizer::CreateMinimizer ( unsigned int n)
inline

create the minimizer from the type and size

Definition at line 130 of file GSLMultiMinimizer.h.

◆ Gradient()

double * ROOT::Math::GSLMultiMinimizer::Gradient ( ) const
inline

gradient value at the minimum

Definition at line 159 of file GSLMultiMinimizer.h.

◆ Iterate()

int ROOT::Math::GSLMultiMinimizer::Iterate ( )
inline

Definition at line 140 of file GSLMultiMinimizer.h.

◆ Minimum()

double ROOT::Math::GSLMultiMinimizer::Minimum ( ) const
inline

function value at the minimum

Definition at line 153 of file GSLMultiMinimizer.h.

◆ Name()

std::string ROOT::Math::GSLMultiMinimizer::Name ( ) const
inline

Definition at line 135 of file GSLMultiMinimizer.h.

◆ operator=() [1/2]

GSLMultiMinimizer & ROOT::Math::GSLMultiMinimizer::operator= ( const GSLMultiMinimizer & rhs)
delete

◆ operator=() [2/2]

GSLMultiMinimizer & ROOT::Math::GSLMultiMinimizer::operator= ( GSLMultiMinimizer && rhs)
delete

◆ Restart()

int ROOT::Math::GSLMultiMinimizer::Restart ( )
inline

restart minimization from current point

Definition at line 166 of file GSLMultiMinimizer.h.

◆ Set()

int ROOT::Math::GSLMultiMinimizer::Set ( const ROOT::Math::IMultiGradFunction & func,
const double * x,
double stepSize,
double tol )
inline

set the function to be minimize the initial minimizer parameters, step size and tolerance in the line search

Definition at line 115 of file GSLMultiMinimizer.h.

◆ TestGradient() [1/2]

int ROOT::Math::GSLMultiMinimizer::TestGradient ( const double * g,
double absTol ) const
inline

test gradient (require a vector gradient)

Definition at line 179 of file GSLMultiMinimizer.h.

◆ TestGradient() [2/2]

int ROOT::Math::GSLMultiMinimizer::TestGradient ( double absTol) const
inline

test gradient (ask from minimizer gradient vector)

Definition at line 172 of file GSLMultiMinimizer.h.

◆ X()

double * ROOT::Math::GSLMultiMinimizer::X ( ) const
inline

x values at the minimum

Definition at line 146 of file GSLMultiMinimizer.h.

Member Data Documentation

◆ fFunc

GSLMultiMinDerivFunctionWrapper ROOT::Math::GSLMultiMinimizer::fFunc
private

Definition at line 191 of file GSLMultiMinimizer.h.

◆ fMinimizer

gsl_multimin_fdfminimizer* ROOT::Math::GSLMultiMinimizer::fMinimizer
private

Definition at line 190 of file GSLMultiMinimizer.h.

◆ fType

const gsl_multimin_fdfminimizer_type* ROOT::Math::GSLMultiMinimizer::fType
private

Definition at line 192 of file GSLMultiMinimizer.h.

◆ fVec

gsl_vector* ROOT::Math::GSLMultiMinimizer::fVec
mutableprivate

Definition at line 194 of file GSLMultiMinimizer.h.


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