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ROOT::Math::GSLMultiMinimizer Class Reference
Math » MathCoreMath » | MathMore » Numerical Algorithms » Multi-dimensional Minimization

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

Definition at line 53 of file GSLMultiMinimizer.h.

Public Member Functions

 GSLMultiMinimizer (ROOT::Math::EGSLMinimizerType type)
 Default constructor. More...
 
 ~GSLMultiMinimizer ()
 Destructor. More...
 
void CreateMinimizer (unsigned int n)
 create the minimizer from the type and size More...
 
double * Gradient () const
 gradient value at the minimum More...
 
int Iterate ()
 
double Minimum () const
 function value at the minimum More...
 
std::string Name () const
 
int Restart ()
 restart minimization from current point More...
 
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 More...
 
int TestGradient (double absTol) const
 test gradient (ask from minimizer gradient vector) More...
 
int TestGradient (const double *g, double absTol) const
 test gradient (require a vector gradient) More...
 
double * X () const
 x values at the minimum More...
 

Private Member Functions

 GSLMultiMinimizer (const GSLMultiMinimizer &)
 Copy constructor. More...
 
GSLMultiMinimizer & operator= (const GSLMultiMinimizer &rhs)
 Assignment operator. More...
 

Private Attributes

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

#include </home/ozapatam/Projects/root/math/mathmore/src/GSLMultiMinimizer.h>

Constructor & Destructor Documentation

◆ GSLMultiMinimizer() [1/2]

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

Default constructor.

Definition at line 60 of file GSLMultiMinimizer.h.

◆ ~GSLMultiMinimizer()

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

Destructor.

Definition at line 98 of file GSLMultiMinimizer.h.

◆ GSLMultiMinimizer() [2/2]

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

Copy constructor.

Definition at line 110 of file GSLMultiMinimizer.h.

Member Function Documentation

◆ CreateMinimizer()

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

create the minimizer from the type and size

Definition at line 141 of file GSLMultiMinimizer.h.

◆ Gradient()

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

gradient value at the minimum

Definition at line 170 of file GSLMultiMinimizer.h.

◆ Iterate()

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

Definition at line 151 of file GSLMultiMinimizer.h.

◆ Minimum()

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

function value at the minimum

Definition at line 164 of file GSLMultiMinimizer.h.

◆ Name()

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

Definition at line 146 of file GSLMultiMinimizer.h.

◆ operator=()

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

Assignment operator.

Definition at line 115 of file GSLMultiMinimizer.h.

◆ Restart()

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

restart minimization from current point

Definition at line 177 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 126 of file GSLMultiMinimizer.h.

◆ TestGradient() [1/2]

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

test gradient (ask from minimizer gradient vector)

Definition at line 183 of file GSLMultiMinimizer.h.

◆ TestGradient() [2/2]

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

test gradient (require a vector gradient)

Definition at line 190 of file GSLMultiMinimizer.h.

◆ X()

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

x values at the minimum

Definition at line 157 of file GSLMultiMinimizer.h.

Member Data Documentation

◆ fFunc

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

Definition at line 202 of file GSLMultiMinimizer.h.

◆ fMinimizer

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

Definition at line 201 of file GSLMultiMinimizer.h.

◆ fType

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

Definition at line 203 of file GSLMultiMinimizer.h.

◆ fVec

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

Definition at line 205 of file GSLMultiMinimizer.h.

Libraries for ROOT::Math::GSLMultiMinimizer:
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The documentation for this class was generated from the following file: