repicea.stats.estimators

Class MaximumLikelihoodEstimator

java.lang.Object

repicea.stats.estimators.MaximumLikelihoodEstimator

All Implemented Interfaces:

Estimator

public class MaximumLikelihoodEstimator
extends java.lang.Object
implements Estimator

This interface specifies if the optimizer is based on a maximum likelihood theory.

Nested Class Summary

Nested classes/interfaces inherited from interface repicea.stats.estimators.Estimator

Estimator.EstimatorException

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	hasConverged
protected NewtonRaphsonOptimizer	nro
protected GaussianEstimate	parameterEstimate

Constructor Summary

Constructors

Constructor and Description
MaximumLikelihoodEstimator()

Method Summary

Modifier and Type	Method and Description
boolean	doEstimation(StatisticalModel<? extends StatisticalDataStructure> model)
double	getMaximumLogLikelihood() Returns the maximum log likelihood value after convergence.
Estimate<?>	getParameterEstimates() This method returns the parameter estimates.
boolean	isConvergenceAchieved() This method returns true if the estimator successfully estimated the parameters.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

hasConverged

protected boolean hasConverged

parameterEstimate

protected GaussianEstimate parameterEstimate

nro

protected final NewtonRaphsonOptimizer nro

Constructor Detail

MaximumLikelihoodEstimator

public MaximumLikelihoodEstimator()

Method Detail

doEstimation

public boolean doEstimation(StatisticalModel<? extends StatisticalDataStructure> model)
                     throws Estimator.EstimatorException

Specified by:

doEstimation in interface Estimator

Throws:

Estimator.EstimatorException

getMaximumLogLikelihood

public double getMaximumLogLikelihood()

Returns the maximum log likelihood value after convergence.

Returns:

a double

isConvergenceAchieved

public boolean isConvergenceAchieved()

Description copied from interface: Estimator

This method returns true if the estimator successfully estimated the parameters.

Specified by:

isConvergenceAchieved in interface Estimator

Returns:

a boolean

getParameterEstimates

public Estimate<?> getParameterEstimates()

Description copied from interface: Estimator

This method returns the parameter estimates.

Specified by:

getParameterEstimates in interface Estimator

Returns:

an Estimate instance

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object