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.

Author:

Ricardo Silva

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
ICovarianceMatrix	getCovMatrix()
DataSet	getDataSet()
double	getSignificance()
BpcTestType	getTestType()
List<Node>	getVariables()
String[]	getVarNames()
boolean	oneFactorTest(int v1, int v2, int v3, int v4)
boolean	oneFactorTest(int v1, int v2, int v3, int v4, int v5)
void	setBollenTest(DeltaTetradTest deltaTest)
void	setCovMatrix(ICovarianceMatrix covMatrix)
void	setSignificance(double sig)
void	setTestType(BpcTestType sigTestType)
boolean	tetradHolds(int v1, int v2, int v3, int v4)
double	tetradPValue(int v1, int v2, int v3, int v4)
int	tetradScore(int v1, int v2, int v3, int v4)
boolean	tetradScore1(int v1, int v2, int v3, int v4)	Tests the tetrad (v1, v3) x (v2, v4) = (v1, v4) x (v2, v3)
boolean	tetradScore3(int v1, int v2, int v3, int v4)	Tests if all tetrad constraints hold
boolean	twoFactorTest(int v1, int v2, int v3, int v4)
boolean	twoFactorTest(int v1, int v2, int v3, int v4, int v5)
boolean	twoFactorTest(int v1, int v2, int v3, int v4, int v5, int v6)

Methods inherited from class java.lang.Object

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

Constructor Details

TetradTestContinuous

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

TetradTestContinuous

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

TetradTestContinuous

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

Method Details

getSignificance

public double getSignificance()

Specified by:

getSignificance in interface TetradTest

setSignificance

public void setSignificance(double sig)

Specified by:

setSignificance in interface TetradTest

getDataSet

public DataSet getDataSet()

Specified by:

getDataSet in interface TetradTest

getCovMatrix

public ICovarianceMatrix getCovMatrix()

Specified by:

getCovMatrix in interface TetradTest

setCovMatrix

public void setCovMatrix(ICovarianceMatrix covMatrix)

getVarNames

public String[] getVarNames()

Specified by:

getVarNames in interface TetradTest

getVariables

public List<Node> getVariables()

Specified by:

getVariables in interface TetradTest

getTestType

public BpcTestType getTestType()

setTestType

public void setTestType(BpcTestType sigTestType)

tetradScore

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

Specified by:

tetradScore in interface TetradTest

tetradScore1

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

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

Specified by:

tetradScore1 in interface TetradTest

tetradScore3

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

Tests if all tetrad constraints hold

Specified by:

tetradScore3 in interface TetradTest

tetradHolds

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

Specified by:

tetradHolds in interface TetradTest

tetradPValue

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

Specified by:

tetradPValue in interface TetradTest

setBollenTest

public void setBollenTest(DeltaTetradTest deltaTest)

oneFactorTest

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

Specified by:

oneFactorTest in interface TetradTest

oneFactorTest

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

Specified by:

oneFactorTest in interface TetradTest

twoFactorTest

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

Specified by:

twoFactorTest in interface TetradTest

twoFactorTest

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

Specified by:

twoFactorTest in interface TetradTest

twoFactorTest

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

Specified by:

twoFactorTest in interface TetradTest