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Reference Guide
ROOT::Minuit2::MinimumError Class Reference

MinimumError keeps the inv.

2nd derivative (inv. Hessian) used for calculating the Parameter step size (-V*g) and for the covariance Update (ErrorUpdator). The covariance matrix is equal to twice the inv. Hessian.

Definition at line 26 of file MinimumError.h.

Public Types

using MnHesseFailed = BasicMinimumError::MnHesseFailed
 
using MnInvertFailed = BasicMinimumError::MnInvertFailed
 
using MnMadePosDef = BasicMinimumError::MnMadePosDef
 
using MnNotPosDef = BasicMinimumError::MnNotPosDef
 

Public Member Functions

 MinimumError (const MnAlgebraicSymMatrix &mat, double dcov)
 
 MinimumError (const MnAlgebraicSymMatrix &mat, MnHesseFailed)
 
 MinimumError (const MnAlgebraicSymMatrix &mat, MnInvertFailed)
 
 MinimumError (const MnAlgebraicSymMatrix &mat, MnMadePosDef)
 
 MinimumError (const MnAlgebraicSymMatrix &mat, MnNotPosDef)
 
 MinimumError (unsigned int n)
 
double Dcovar () const
 
bool HesseFailed () const
 
MnAlgebraicSymMatrix Hessian () const
 
bool InvertFailed () const
 
const MnAlgebraicSymMatrixInvHessian () const
 
bool IsAccurate () const
 
bool IsAvailable () const
 
bool IsMadePosDef () const
 
bool IsPosDef () const
 
bool IsValid () const
 
MnAlgebraicSymMatrix Matrix () const
 

Private Attributes

std::shared_ptr< BasicMinimumErrorfData
 

#include <Minuit2/MinimumError.h>

Member Typedef Documentation

◆ MnHesseFailed

◆ MnInvertFailed

◆ MnMadePosDef

◆ MnNotPosDef

Constructor & Destructor Documentation

◆ MinimumError() [1/6]

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

Definition at line 35 of file MinimumError.h.

◆ MinimumError() [2/6]

ROOT::Minuit2::MinimumError::MinimumError ( const MnAlgebraicSymMatrix mat,
double  dcov 
)
inline

Definition at line 37 of file MinimumError.h.

◆ MinimumError() [3/6]

ROOT::Minuit2::MinimumError::MinimumError ( const MnAlgebraicSymMatrix mat,
MnHesseFailed   
)
inline

Definition at line 39 of file MinimumError.h.

◆ MinimumError() [4/6]

ROOT::Minuit2::MinimumError::MinimumError ( const MnAlgebraicSymMatrix mat,
MnMadePosDef   
)
inline

Definition at line 44 of file MinimumError.h.

◆ MinimumError() [5/6]

ROOT::Minuit2::MinimumError::MinimumError ( const MnAlgebraicSymMatrix mat,
MnInvertFailed   
)
inline

Definition at line 49 of file MinimumError.h.

◆ MinimumError() [6/6]

ROOT::Minuit2::MinimumError::MinimumError ( const MnAlgebraicSymMatrix mat,
MnNotPosDef   
)
inline

Definition at line 54 of file MinimumError.h.

Member Function Documentation

◆ Dcovar()

double ROOT::Minuit2::MinimumError::Dcovar ( ) const
inline

Definition at line 65 of file MinimumError.h.

◆ HesseFailed()

bool ROOT::Minuit2::MinimumError::HesseFailed ( ) const
inline

Definition at line 70 of file MinimumError.h.

◆ Hessian()

MnAlgebraicSymMatrix ROOT::Minuit2::MinimumError::Hessian ( ) const
inline

Definition at line 63 of file MinimumError.h.

◆ InvertFailed()

bool ROOT::Minuit2::MinimumError::InvertFailed ( ) const
inline

Definition at line 71 of file MinimumError.h.

◆ InvHessian()

const MnAlgebraicSymMatrix& ROOT::Minuit2::MinimumError::InvHessian ( ) const
inline

Definition at line 61 of file MinimumError.h.

◆ IsAccurate()

bool ROOT::Minuit2::MinimumError::IsAccurate ( ) const
inline

Definition at line 66 of file MinimumError.h.

◆ IsAvailable()

bool ROOT::Minuit2::MinimumError::IsAvailable ( ) const
inline

Definition at line 72 of file MinimumError.h.

◆ IsMadePosDef()

bool ROOT::Minuit2::MinimumError::IsMadePosDef ( ) const
inline

Definition at line 69 of file MinimumError.h.

◆ IsPosDef()

bool ROOT::Minuit2::MinimumError::IsPosDef ( ) const
inline

Definition at line 68 of file MinimumError.h.

◆ IsValid()

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

Definition at line 67 of file MinimumError.h.

◆ Matrix()

MnAlgebraicSymMatrix ROOT::Minuit2::MinimumError::Matrix ( ) const
inline

Definition at line 59 of file MinimumError.h.

Member Data Documentation

◆ fData

std::shared_ptr<BasicMinimumError> ROOT::Minuit2::MinimumError::fData
private

Definition at line 75 of file MinimumError.h.

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

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