Package edu.cmu.tetrad.search.utils

Class TetradTestContinuous

java.lang.Object

edu.cmu.tetrad.search.utils.TetradTestContinuous

All Implemented Interfaces:

TetradTest

public final class TetradTestContinuous
extends Object
implements TetradTest

Implements different tests of tetrad constraints: using Wishart's test (CPS, Wishart 1928); Bollen's test (Bollen, 1990) or a more computationally intensive test that fits one/two factor Gaussian models. These tests are the core statistical procedure of search algorithm BuildPureClusters and Purify.

References:

Bollen, K. (1990). "Outlier screening and distribution-free test for vanishing tetrads." Sociological Methods and Research 19, 80-92.

Wishart, J. (1928). "Sampling errors in the theory of two factors". British Journal of Psychology 19, 180-187.

Version:

$Id: $Id

Author:

Ricardo Silva

Constructor Summary

Constructors

Constructor	Description
TetradTestContinuous(CorrelationMatrix correlationMatrix, BpcTestType sigTestType, double sig)	Constructor for TetradTestContinuous.
TetradTestContinuous(DataSet dataSet, BpcTestType sigTestType, double sig)	Constructor for TetradTestContinuous.
TetradTestContinuous(ICovarianceMatrix covMatrix, BpcTestType sigTestType, double sig)	Constructor for TetradTestContinuous.

Method Summary

Modifier and Type	Method	Description
ICovarianceMatrix	getCovMatrix()	getCovMatrix.
DataSet	getDataSet()	Getter for the field dataSet.
double	getSignificance()	getSignificance.
BpcTestType	getTestType()	getTestType.
List<Node>	getVariables()	Getter for the field variables.
String[]	getVarNames()	getVarNames.
boolean	oneFactorTest(int v1, int v2, int v3, int v4)	oneFactorTest.
boolean	oneFactorTest(int v1, int v2, int v3, int v4, int v5)	oneFactorTest.
void	setBollenTest(DeltaTetradTest deltaTest)	setBollenTest.
void	setCovMatrix(ICovarianceMatrix covMatrix)	Setter for the field covMatrix.
void	setSignificance(double sig)	setSignificance.
void	setTestType(BpcTestType sigTestType)	setTestType.
boolean	tetradHolds(int v1, int v2, int v3, int v4)	tetradHolds.
double	tetradPValue(int v1, int v2, int v3, int v4)	tetradPValue.
int	tetradScore(int v1, int v2, int v3, int v4)	tetradScore.
boolean	tetradScore1(int v1, int v2, int v3, int v4)	tetradScore1.
boolean	tetradScore3(int v1, int v2, int v3, int v4)	tetradScore3.
boolean	twoFactorTest(int v1, int v2, int v3, int v4)	twoFactorTest.
boolean	twoFactorTest(int v1, int v2, int v3, int v4, int v5)	twoFactorTest.
boolean	twoFactorTest(int v1, int v2, int v3, int v4, int v5, int v6)	twoFactorTest.

Methods inherited from class java.lang.Object

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

Constructor Details

TetradTestContinuous

public TetradTestContinuous(DataSet dataSet,
 BpcTestType sigTestType,
 double sig)

Constructor for TetradTestContinuous.

Parameters:

dataSet - a DataSet object

sigTestType - a BpcTestType object

sig - a double

TetradTestContinuous

public TetradTestContinuous(ICovarianceMatrix covMatrix,
 BpcTestType sigTestType,
 double sig)

Constructor for TetradTestContinuous.

Parameters:

covMatrix - a ICovarianceMatrix object

sigTestType - a BpcTestType object

sig - a double

TetradTestContinuous

public TetradTestContinuous(CorrelationMatrix correlationMatrix,
 BpcTestType sigTestType,
 double sig)

Constructor for TetradTestContinuous.

Parameters:

correlationMatrix - a CorrelationMatrix object

sigTestType - a BpcTestType object

sig - a double

Method Details

getSignificance

public double getSignificance()

getSignificance.

Specified by:

getSignificance in interface TetradTest

Returns:

a double

setSignificance

public void setSignificance(double sig)

setSignificance.

Specified by:

setSignificance in interface TetradTest

Parameters:

sig - a double

getDataSet

public DataSet getDataSet()

Getter for the field dataSet.

Specified by:

getDataSet in interface TetradTest

Returns:

a DataSet object

getCovMatrix

public ICovarianceMatrix getCovMatrix()

getCovMatrix.

Specified by:

getCovMatrix in interface TetradTest

Returns:

a ICovarianceMatrix object

setCovMatrix

public void setCovMatrix(ICovarianceMatrix covMatrix)

Setter for the field covMatrix.

Parameters:

covMatrix - a ICovarianceMatrix object

getVarNames

public String[] getVarNames()

getVarNames.

Specified by:

getVarNames in interface TetradTest

Returns:

an array of String objects

getVariables

public List<Node> getVariables()

Getter for the field variables.

Specified by:

getVariables in interface TetradTest

Returns:

a List object

getTestType

public BpcTestType getTestType()

getTestType.

Returns:

a BpcTestType object

setTestType

public void setTestType(BpcTestType sigTestType)

setTestType.

Parameters:

sigTestType - a BpcTestType object

tetradScore

public int tetradScore(int v1,
 int v2,
 int v3,
 int v4)

tetradScore.

Specified by:

tetradScore in interface TetradTest

Parameters:

v1 - a int

v2 - a int

v3 - a int

v4 - a int

Returns:

a int

tetradScore1

public boolean tetradScore1(int v1,
 int v2,
 int v3,
 int v4)

tetradScore1.

Tests the tetrad (v1, v3) x (v2, v4) = (v1, v4) x (v2, v3)

Specified by:

tetradScore1 in interface TetradTest

Parameters:

v1 - a int

v2 - a int

v3 - a int

v4 - a int

Returns:

a boolean

tetradScore3

public boolean tetradScore3(int v1,
 int v2,
 int v3,
 int v4)

tetradScore3.

Tests if all tetrad constraints hold

Specified by:

tetradScore3 in interface TetradTest

Parameters:

v1 - a int

v2 - a int

v3 - a int

v4 - a int

Returns:

a boolean

tetradHolds

public boolean tetradHolds(int v1,
 int v2,
 int v3,
 int v4)

tetradHolds.

Specified by:

tetradHolds in interface TetradTest

Parameters:

v1 - a int

v2 - a int

v3 - a int

v4 - a int

Returns:

a boolean

tetradPValue

public double tetradPValue(int v1,
 int v2,
 int v3,
 int v4)

tetradPValue.

Specified by:

tetradPValue in interface TetradTest

Parameters:

v1 - a int

v2 - a int

v3 - a int

v4 - a int

Returns:

a double

setBollenTest

public void setBollenTest(DeltaTetradTest deltaTest)

setBollenTest.

Parameters:

deltaTest - a DeltaTetradTest object

oneFactorTest

public boolean oneFactorTest(int v1,
 int v2,
 int v3,
 int v4)

oneFactorTest.

Specified by:

oneFactorTest in interface TetradTest

Parameters:

v1 - a int

v2 - a int

v3 - a int

v4 - a int

Returns:

a boolean

oneFactorTest

public boolean oneFactorTest(int v1,
 int v2,
 int v3,
 int v4,
 int v5)

oneFactorTest.

Specified by:

oneFactorTest in interface TetradTest

Parameters:

v1 - a int

v2 - a int

v3 - a int

v4 - a int

v5 - a int

Returns:

a boolean

twoFactorTest

public boolean twoFactorTest(int v1,
 int v2,
 int v3,
 int v4)

twoFactorTest.

Specified by:

twoFactorTest in interface TetradTest

Parameters:

v1 - a int

v2 - a int

v3 - a int

v4 - a int

Returns:

a boolean

twoFactorTest

public boolean twoFactorTest(int v1,
 int v2,
 int v3,
 int v4,
 int v5)

twoFactorTest.

Specified by:

twoFactorTest in interface TetradTest

Parameters:

v1 - a int

v2 - a int

v3 - a int

v4 - a int

v5 - a int

Returns:

a boolean

twoFactorTest

public boolean twoFactorTest(int v1,
 int v2,
 int v3,
 int v4,
 int v5,
 int v6)

twoFactorTest.

Specified by:

twoFactorTest in interface TetradTest

Parameters:

v1 - a int

v2 - a int

v3 - a int

v4 - a int

v5 - a int

v6 - a int

Returns:

a boolean