ROOT   Reference Guide
ROOT::Minuit2::MinimumState Class Reference

MinimumState keeps the information (position, Gradient, 2nd deriv, etc) after one minimization step (usually in MinimumBuilder).

Definition at line 27 of file MinimumState.h.

struct  Data

## Public Member Functions

MinimumState (const MinimumParameters &states, const MinimumError &err, const FunctionGradient &grad, double edm, int nfcn)
Constructor with parameters values, errors and gradient. More...

MinimumState (const MinimumParameters &states, double edm, int nfcn)
Constuctor with only parameter values, edm and nfcn, but without errors (covariance). More...

MinimumState (double fval, double edm, int nfcn)
Constructor without parameter values, but with function value, edm and nfcn. More...

MinimumState (unsigned int n)
Invalid state. More...

double Edm () const

const MinimumErrorError () const

double Fval () const

bool HasCovariance () const

bool HasParameters () const

bool IsValid () const

int NFcn () const

const MinimumParametersParameters () const

int size () const

const MnAlgebraicVectorVec () const

## Private Attributes

std::shared_ptr< DatafPtr

#include <Minuit2/MinimumState.h>

## ◆ MinimumState() [1/4]

 ROOT::Minuit2::MinimumState::MinimumState ( unsigned int n )
inline

Invalid state.

Definition at line 31 of file MinimumState.h.

## ◆ MinimumState() [2/4]

 ROOT::Minuit2::MinimumState::MinimumState ( double fval, double edm, int nfcn )
inline

Constructor without parameter values, but with function value, edm and nfcn.

This constructor will result in a state that is flagged as not valid

Definition at line 37 of file MinimumState.h.

## ◆ MinimumState() [3/4]

 ROOT::Minuit2::MinimumState::MinimumState ( const MinimumParameters & states, double edm, int nfcn )
inline

Constuctor with only parameter values, edm and nfcn, but without errors (covariance).

The resulting state it will be considered valid, since it contains the parameter values, although it will has not the error matrix (MinimumError) with HasCovariance() returning false.

Definition at line 46 of file MinimumState.h.

## ◆ MinimumState() [4/4]

 ROOT::Minuit2::MinimumState::MinimumState ( const MinimumParameters & states, const MinimumError & err, const FunctionGradient & grad, double edm, int nfcn )
inline

Constructor with parameters values, errors and gradient.

Definition at line 52 of file MinimumState.h.

## ◆ Edm()

 double ROOT::Minuit2::MinimumState::Edm ( ) const
inline

Definition at line 65 of file MinimumState.h.

## ◆ Error()

 const MinimumError & ROOT::Minuit2::MinimumState::Error ( ) const
inline

Definition at line 62 of file MinimumState.h.

## ◆ Fval()

 double ROOT::Minuit2::MinimumState::Fval ( ) const
inline

Definition at line 64 of file MinimumState.h.

inline

Definition at line 63 of file MinimumState.h.

## ◆ HasCovariance()

 bool ROOT::Minuit2::MinimumState::HasCovariance ( ) const
inline

Definition at line 79 of file MinimumState.h.

## ◆ HasParameters()

 bool ROOT::Minuit2::MinimumState::HasParameters ( ) const
inline

Definition at line 78 of file MinimumState.h.

## ◆ IsValid()

 bool ROOT::Minuit2::MinimumState::IsValid ( ) const
inline

Definition at line 68 of file MinimumState.h.

## ◆ NFcn()

 int ROOT::Minuit2::MinimumState::NFcn ( ) const
inline

Definition at line 66 of file MinimumState.h.

## ◆ Parameters()

 const MinimumParameters & ROOT::Minuit2::MinimumState::Parameters ( ) const
inline

Definition at line 58 of file MinimumState.h.

## ◆ size()

 int ROOT::Minuit2::MinimumState::size ( ) const
inline

Definition at line 60 of file MinimumState.h.

## ◆ Vec()

 const MnAlgebraicVector & ROOT::Minuit2::MinimumState::Vec ( ) const
inline

Definition at line 59 of file MinimumState.h.

## ◆ fPtr

 std::shared_ptr ROOT::Minuit2::MinimumState::fPtr
private

Definition at line 90 of file MinimumState.h.

Libraries for ROOT::Minuit2::MinimumState:
[legend]

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