MathSys::LMConfig Struct Reference

Configuration for Levenberg-Marquardt algorithm. Extends base Config with damping parameter settings. More...

#include <MathSys_LevenbergMarquardt.hxx>

Inheritance diagram for MathSys::LMConfig:

Public Member Functions
	LMConfig ()=default
	Default constructor.
	LMConfig (double theTolerance, int theMaxIter=100)
	Constructor with custom tolerance.
Public Member Functions inherited from MathUtils::Config
	Config ()=default
	Default constructor with standard tolerances.
	Config (double theTolerance, int theMaxIter=100)
	Constructor with custom tolerance (sets all tolerances to same value).

Data Fields
double	LambdaInit = 1.0e-3
	Initial damping parameter.
double	LambdaIncrease = 10.0
	Factor to increase lambda on rejected step.
double	LambdaDecrease = 0.1
	Factor to decrease lambda on accepted step.
double	LambdaMax = 1.0e10
	Maximum lambda value before failing.
double	LambdaMin = 1.0e-12
	Minimum lambda value.
Data Fields inherited from MathUtils::Config
int	MaxIterations = 100
	Maximum number of iterations allowed.
double	Tolerance = 1.0e-10
	General convergence tolerance.
double	XTolerance = 1.0e-10
	Tolerance for solution change |x_{n+1} - x_n|.
double	FTolerance = 1.0e-10
	Tolerance for function value |f(x)|.
double	StepMin = std::numeric_limits<double>::epsilon()
	Minimum step size before declaring convergence or failure.

Detailed Description

Configuration for Levenberg-Marquardt algorithm. Extends base Config with damping parameter settings.

Constructor & Destructor Documentation

LMConfig() [1/2]

MathSys::LMConfig::LMConfig ( )

default

Default constructor.

LMConfig() [2/2]

MathSys::LMConfig::LMConfig ( double theTolerance, int theMaxIter = 100 )

inlineexplicit

Constructor with custom tolerance.

Parameters

theTolerance	convergence tolerance
theMaxIter	maximum iterations

Field Documentation

LambdaDecrease

double MathSys::LMConfig::LambdaDecrease = 0.1

Factor to decrease lambda on accepted step.

LambdaIncrease

double MathSys::LMConfig::LambdaIncrease = 10.0

Factor to increase lambda on rejected step.

LambdaInit

double MathSys::LMConfig::LambdaInit = 1.0e-3

Initial damping parameter.

LambdaMax

double MathSys::LMConfig::LambdaMax = 1.0e10

Maximum lambda value before failing.

LambdaMin

double MathSys::LMConfig::LambdaMin = 1.0e-12

Minimum lambda value.

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

• MathSys_LevenbergMarquardt.hxx