Package edu.cmu.tetrad.algcomparison.independence

Class GSquare

java.lang.Object

edu.cmu.tetrad.algcomparison.independence.GSquare

All Implemented Interfaces:

IndependenceWrapper, HasParameters, TetradSerializable, Serializable

@TestOfIndependence(name="G Square Test",
                    command="g-square-test",
                    dataType=Discrete)
public class GSquare
extends Object
implements IndependenceWrapper

Wrapper for Fisher Z test.

Version:

$Id: $Id

Author:

josephramsey

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
GSquare()	GSquare class represents a wrapper for the G Square test, which is a statistical test for independence between two variables conditional on a third variable.

Method Summary

Modifier and Type	Method	Description
DataType	getDataType()	Returns the data type that the search requires, whether continuous, discrete, or mixed.
String	getDescription()	Returns a short of this independence test.
List<String>	getParameters()	Returns the parameters that this search uses.
IndependenceTest	getTest(DataModel dataSet, Parameters parameters)	Returns true iff x and y are independent conditional on z for the given data set.

Methods inherited from class java.lang.Object

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

Constructor Details

GSquare

public GSquare()

GSquare class represents a wrapper for the G Square test, which is a statistical test for independence between two variables conditional on a third variable.

This class implements the IndependenceWrapper interface, which requires the implementation of several methods.

Method Details

getTest

public IndependenceTest getTest(DataModel dataSet,
 Parameters parameters)

Returns true iff x and y are independent conditional on z for the given data set.

Specified by:

getTest in interface IndependenceWrapper

Parameters:

dataSet - The data set to test independence against.

parameters - The paramters of the test.

Returns:

True iff independence holds.

getDescription

public String getDescription()

Returns a short of this independence test.

Specified by:

getDescription in interface IndependenceWrapper

Returns:

This description.

getDataType

public DataType getDataType()

Returns the data type that the search requires, whether continuous, discrete, or mixed.

Specified by:

getDataType in interface IndependenceWrapper

Returns:

This type.

getParameters

public List<String> getParameters()

Returns the parameters that this search uses.

Specified by:

getParameters in interface HasParameters

Specified by:

getParameters in interface IndependenceWrapper

Returns:

A list of String names of parameters.