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PosteriorWeightsCalculator Class Reference

Helper class which calculates the posterior weights of a Gaussian mixture given a prior (predicted) mixture and a RecHit. More...

#include <TrackingTools/GsfTracking/interface/PosteriorWeightsCalculator.h>

List of all members.

Public Member Functions
	PosteriorWeightsCalculator (const std::vector< TSOS > &mixture)
template<unsigned int D>
std::vector< double >	weights (const TransientTrackingRecHit &tsos) const
std::vector< double >	weights (const TransientTrackingRecHit &tsos) const
	Create random state.
	~PosteriorWeightsCalculator ()
Private Types
typedef TrajectoryStateOnSurface	TSOS
Private Attributes
std::vector< TSOS >	predictedComponents

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Detailed Description

Helper class which calculates the posterior weights of a Gaussian mixture given a prior (predicted) mixture and a RecHit.

The prior is specified during construction time in the form of a vector of trajectory states.

Definition at line 13 of file PosteriorWeightsCalculator.h.

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Member Typedef Documentation

typedef TrajectoryStateOnSurface PosteriorWeightsCalculator::TSOS [private]

Definition at line 16 of file PosteriorWeightsCalculator.h.

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Constructor & Destructor Documentation

PosteriorWeightsCalculator::PosteriorWeightsCalculator

(

const std::vector< TSOS > &

mixture

)

[inline]

Definition at line 19 of file PosteriorWeightsCalculator.h.

                                                             :
    predictedComponents(mixture) {}

PosteriorWeightsCalculator::~PosteriorWeightsCalculator

(

)

[inline]

Definition at line 22 of file PosteriorWeightsCalculator.h.

{}

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Member Function Documentation

template<unsigned int D>

std::vector<double> PosteriorWeightsCalculator::weights

(

const TransientTrackingRecHit &

tsos

)

const [inline]

std::vector< double > PosteriorWeightsCalculator::weights

(

const TransientTrackingRecHit &

tsos

)

const [inline]

Create random state.

!! AlgebraicVector r(recHit.parameters(predictedComponents[i]) - me.measuredParameters(recHit));

!! AlgebraicSymMatrix V(recHit.parametersError(predictedComponents[i]));

Definition at line 8 of file PosteriorWeightsCalculator.cc.

References TrackingRecHit::dimension(), and Exception.

                                                                                                 {
        switch (recHit.dimension()) {
                case 1: return weights<1>(recHit);
                case 2: return weights<2>(recHit);
                case 3: return weights<3>(recHit);
                case 4: return weights<4>(recHit);
                case 5: return weights<5>(recHit);
        }
        throw cms::Exception("Error: rechit of size not 1,2,3,4,5");
}

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Member Data Documentation

std::vector<TSOS> PosteriorWeightsCalculator::predictedComponents [private]

Definition at line 29 of file PosteriorWeightsCalculator.h.

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

• TrackingTools/GsfTracking/interface/PosteriorWeightsCalculator.h
• TrackingTools/GsfTracking/src/PosteriorWeightsCalculator.cc

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