lsst::meas::modelfit::TruncatedGaussianLogEvaluator Class Reference

Helper class for evaluating the -log of a TruncatedGaussian. More...

#include <TruncatedGaussian.h>

Public Member Functions
	TruncatedGaussianLogEvaluator (TruncatedGaussian const &parent)
template<typename Derived >
Scalar	operator() (Eigen::MatrixBase< Derived > const &alpha) const
Scalar	operator() (ndarray::Array< Scalar const, 1, 1 > const &alpha) const
void	operator() (ndarray::Array< Scalar const, 2, 1 > const &alpha, ndarray::Array< Scalar, 1, 1 > const &output) const

Protected Attributes
Scalar	_norm
Vector	_mu
Vector	_workspace
Matrix	_rootH

Detailed Description

Helper class for evaluating the -log of a TruncatedGaussian.

Definition at line 245 of file TruncatedGaussian.h.

Constructor & Destructor Documentation

TruncatedGaussianLogEvaluator()

lsst::meas::modelfit::TruncatedGaussianLogEvaluator::TruncatedGaussianLogEvaluator ( TruncatedGaussian const &  parent )

explicit

Member Function Documentation

operator()() [1/3]

template<typename Derived >

Scalar lsst::meas::modelfit::TruncatedGaussianLogEvaluator::operator() ( Eigen::MatrixBase< Derived > const &  alpha ) const

inline

Definition at line 251 of file TruncatedGaussian.h.

                                                                    {
        if ((alpha.array() < 0.0).any()) return std::numeric_limits<Scalar>::infinity();
        _workspace = alpha - _mu;
        return 0.5*(_rootH*_workspace).squaredNorm() + _norm;
    }

operator()() [2/3]

Scalar lsst::meas::modelfit::TruncatedGaussianLogEvaluator::operator()

(

ndarray::Array< Scalar const, 1, 1 > const &

alpha

)

const

operator()() [3/3]

void lsst::meas::modelfit::TruncatedGaussianLogEvaluator::operator()	(	ndarray::Array< Scalar const, 2, 1 > const &	alpha,
		ndarray::Array< Scalar, 1, 1 > const &	output
	)		const

Member Data Documentation

_mu

Vector lsst::meas::modelfit::TruncatedGaussianLogEvaluator::_mu

protected

Definition at line 266 of file TruncatedGaussian.h.

_norm

Scalar lsst::meas::modelfit::TruncatedGaussianLogEvaluator::_norm

protected

Definition at line 265 of file TruncatedGaussian.h.

_rootH

Matrix lsst::meas::modelfit::TruncatedGaussianLogEvaluator::_rootH

protected

Definition at line 268 of file TruncatedGaussian.h.

_workspace

Vector lsst::meas::modelfit::TruncatedGaussianLogEvaluator::_workspace

mutableprotected

Definition at line 267 of file TruncatedGaussian.h.

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

• /j/snowflake/release/lsstsw/stack/1a1d771/Linux64/meas_modelfit/20.0.0/include/lsst/meas/modelfit/TruncatedGaussian.h