Package edu.cmu.tetrad.bayes

Class BayesProperties

java.lang.Object

edu.cmu.tetrad.bayes.BayesProperties

public final class BayesProperties
extends Object

Calculates some scores for Bayes nets as a whole.

Version:

$Id: $Id

Author:

josephramsey

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	BayesProperties.LikelihoodRet	The LikelihoodRet class represents the result of a likelihood ratio test.

Constructor Summary

Constructors

Constructor	Description
BayesProperties(DataSet dataSet)	Constructs a new BayesProperties object for the given data set.

Method Summary

Modifier and Type	Method	Description
double	getBic()	Call after calling getLikelihoodP().
double	getChisq()	Call after calling getLikelihoodP().
double	getDof()	Call after calling getLikelihoodP().
double	getLikelihood()	Call after calling getLikelihoodP().
BayesProperties.LikelihoodRet	getLikelihoodRatioP(Graph graph0)	Calculates the p-value of the graph with respect to the given data, against the complete model as an alternative.
int	getSampleSize()	Returns the sample size.
Node	getVariable(String targetName)	Returns the variable with the given name (assumed the target).

Methods inherited from class java.lang.Object

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

Constructor Details

BayesProperties

public BayesProperties(DataSet dataSet)

Constructs a new BayesProperties object for the given data set.

Parameters:

dataSet - The data set.

Method Details

getLikelihoodRatioP

public BayesProperties.LikelihoodRet getLikelihoodRatioP(Graph graph0)

Calculates the p-value of the graph with respect to the given data, against the complete model as an alternative.

Parameters:

graph0 - The model to test.

Returns:

The p-value.

getChisq

public double getChisq()

Call after calling getLikelihoodP().

Returns:

The chi-squared statistic.

getDof

public double getDof()

Call after calling getLikelihoodP().

Returns:

The degrees of freedom.

getBic

public double getBic()

Call after calling getLikelihoodP().

Returns:

The BIC.

getLikelihood

public double getLikelihood()

Call after calling getLikelihoodP().

Returns:

The likelihood.

getSampleSize

public int getSampleSize()

Returns the sample size.

Returns:

The sample size.

getVariable

public Node getVariable(String targetName)

Returns the variable with the given name (assumed the target).

Parameters:

targetName - The name of the target variable.

Returns:

a Node object