Package edu.cmu.tetrad.search

Class ContinuousTetradTest

java.lang.Object
edu.cmu.tetrad.search.ContinuousTetradTest
All Implemented Interfaces:
TetradTest
public final class ContinuousTetradTest 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 Details

    • ContinuousTetradTest

      public ContinuousTetradTest(DataSet dataSet, TestType sigTestType, double sig)

    • ContinuousTetradTest

      public ContinuousTetradTest(ICovarianceMatrix covMatrix, TestType sigTestType, double sig)

    • ContinuousTetradTest

      public ContinuousTetradTest(CorrelationMatrix correlationMatrix, TestType 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

    • getVarNames

      public String[] getVarNames()
      Specified by:
      getVarNames in interface TetradTest

    • getVariables

      public List<Node> getVariables()
      Specified by:
      getVariables in interface TetradTest

    • getTestType

      public TestType getTestType()

    • setTestType

      public void setTestType(TestType 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

    • tetradPValue

      public double tetradPValue(int i1, int j1, int k1, int l1, int i2, int j2, int k2, int l2)
      Specified by:
      tetradPValue in interface TetradTest

    • setCovMatrix

      public void setCovMatrix(ICovarianceMatrix covMatrix)

    • 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

    • oneFactorTest

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