Package jdistlib.inference

Class ModelEvaluator

java.lang.Object

jdistlib.inference.ModelEvaluator

All Implemented Interfaces:

DifferentiableLogDensity, GradientProvider, LogDensity

public final class ModelEvaluator
extends Object
implements DifferentiableLogDensity, GradientProvider

Non-thread-safe allocation-free evaluator intended for one sampler chain.

Method Summary

Modifier and Type	Method	Description
boolean	hasAnalyticGradient()
double	logDensity(double[] state)
double	logDensityAndGradient(double[] state, double[] gradient)	Evaluates the log density and replaces gradient with its gradient.

Methods inherited from class java.lang.Object

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

Method Details

hasAnalyticGradient

public boolean hasAnalyticGradient()

Specified by:

hasAnalyticGradient in interface GradientProvider

logDensity

public double logDensity(double[] state)

Specified by:

logDensity in interface DifferentiableLogDensity

Specified by:

logDensity in interface LogDensity

logDensityAndGradient

public double logDensityAndGradient(double[] state,
 double[] gradient)

Description copied from interface: DifferentiableLogDensity

Evaluates the log density and replaces gradient with its gradient.

Specified by:

logDensityAndGradient in interface DifferentiableLogDensity