Belle II Software  release-08-02-04
Public Types | Static Public Member Functions | Static Public Attributes | List of all members
UncertainParametersUtil< T, AEParameters > Struct Template Reference

Utility struct to instantiate a couple of helper function related to a set of uncertain parameters. More...

#include <UncertainParameters.h>

Public Types

using EParamaters = AEParameters
 Indices of the parameters.
 
using ParameterVector = TrackFindingCDC::ParameterVector< c_N >
 The vector type representing the n related parameters.
 
using CovarianceMatrix = TrackFindingCDC::CovarianceMatrix< c_N >
 The matrix type representing the covariance of the n related parameters.
 
using PrecisionMatrix = TrackFindingCDC::PrecisionMatrix< c_N >
 The matrix type representing the precision of the n related parameters.
 
using JacobianMatrix = TrackFindingCDC::JacobianMatrix< c_N >
 The matrix type used to translate covariances and precisions im auto mapping of the parameter space.
 

Static Public Member Functions

static void transport (const JacobianMatrix &jacobian, CovarianceMatrix &cov)
 Transport the covariance matrix inplace with the given jacobian matrix.
 
static CovarianceMatrix transported (const JacobianMatrix &jacobian, const CovarianceMatrix &cov)
 Return a copy of the covariance matrix transported with the given jacobian matrix.
 
static JacobianMatrix reversalJacobian ()
 Jacobian matrix needed in the reversal operation of the parameter vector.
 
static void reverse (CovarianceMatrix &cov)
 Reverse the covariance matrix inplace.
 
static CovarianceMatrix reversed (const CovarianceMatrix &cov)
 Return a copy of the reversed covariance matrix.
 
static CovarianceMatrix identity ()
 Returns an identity matrix.
 
static CovarianceMatrix covarianceFromPrecision (const PrecisionMatrix &prec)
 Convert the precision matrix to the corresponding covariance matrix.
 
static PrecisionMatrix precisionFromCovariance (const CovarianceMatrix &cov)
 Convert the covariance matrix to the corresponding precision matrix.
 
static CovarianceMatrix covarianceFromFullPrecision (const PrecisionMatrix &prec)
 Convert the precision matrix to the corresponding covariance matrix. More...
 
static PrecisionMatrix precisionFromFullCovariance (const CovarianceMatrix &cov)
 Convert the covariance matrix to the corresponding precision matrix. More...
 
template<class AParameterVector , int I = 0>
static AParameterVector getSubParameterVector (const ParameterVector &par)
 Getter for a sub part of the covariance matrix.
 
template<class ACovarianceMatrix , int I = 0>
static ACovarianceMatrix getSubCovarianceMatrix (const CovarianceMatrix &cov)
 Getter for a sub part of the covariance matrix.
 

Static Public Attributes

static const size_t c_N = EParamaters::c_N
 Number of elements.
 

Detailed Description

template<class T, class AEParameters>
struct Belle2::TrackFindingCDC::UncertainParametersUtil< T, AEParameters >

Utility struct to instantiate a couple of helper function related to a set of uncertain parameters.

Definition at line 24 of file UncertainParameters.h.

Member Function Documentation

◆ covarianceFromFullPrecision()

auto covarianceFromFullPrecision ( const PrecisionMatrix &  prec)
static

Convert the precision matrix to the corresponding covariance matrix.

Faster version with foreknowledge that the precision is of full rank.

Definition at line 91 of file UncertainParameters.icc.h.

◆ precisionFromFullCovariance()

auto precisionFromFullCovariance ( const CovarianceMatrix &  cov)
static

Convert the covariance matrix to the corresponding precision matrix.

Faster version with foreknowledge that the precision is of full rank.

Definition at line 98 of file UncertainParameters.icc.h.

The documentation for this struct was generated from the following files: