Class IndTestMixedMultipleTTest

java.lang.Object
edu.cmu.tetrad.search.work_in_progress.IndTestMixedMultipleTTest
All Implemented Interfaces:
IndependenceTest

public class IndTestMixedMultipleTTest extends Object implements IndependenceTest
Performs a test of conditional independence X _||_ Y | Z1...Zn where all searchVariables are either continuous or discrete. This test is valid for both ordinal and non-ordinal discrete searchVariables.

This logisticRegression makes multiple assumptions: 1. IIA 2. Large sample size (multiple regressions needed on subsets of sample)

Author:
josephramsey, Augustus Mayo.
  • Constructor Details

    • IndTestMixedMultipleTTest

      public IndTestMixedMultipleTTest(DataSet data, double alpha)
  • Method Details

    • setPreferLinear

      public void setPreferLinear(boolean preferLinear)
    • indTestSubset

      public IndependenceTest indTestSubset(List<Node> vars)
      Description copied from interface: IndependenceTest
      Returns an Independence test for a sublist of the variables.
      Specified by:
      indTestSubset in interface IndependenceTest
      Parameters:
      vars - The sublist of variables.
      Returns:
      an Independence test for a subset of the searchVariables.
    • checkIndependence

      public IndependenceResult checkIndependence(Node x, Node y, Set<Node> z)
      Specified by:
      checkIndependence in interface IndependenceTest
      Returns:
      True if the given independence question is judged true, False if not. The independence question is of the form x _||_ y | z, z = [z1,...,zn], where x, y, z1,...,zn are searchVariables in the list returned by getVariableNames().
      See Also:
    • getPValue

      public double getPValue()
      Returns:
      the probability associated with the most recently executed independence test, of Double.NaN if p value is not meaningful for tis test.
    • getVariables

      public List<Node> getVariables()
      Specified by:
      getVariables in interface IndependenceTest
      Returns:
      the list of searchVariables over which this independence checker is capable of determinining independence relations.
    • determines

      public boolean determines(List<Node> z, Node y)
      Throws:
      javax.help.UnsupportedOperationException - Method not implemented.
    • getAlpha

      public double getAlpha()
      Description copied from interface: IndependenceTest
      Returns the significance level of the independence test.
      Specified by:
      getAlpha in interface IndependenceTest
      Returns:
      This level.
      Throws:
      UnsupportedOperationException - if there is no significance level.
    • setAlpha

      public void setAlpha(double alpha)
      Sets the significance level.
      Specified by:
      setAlpha in interface IndependenceTest
      Parameters:
      alpha - This level.
    • getData

      public DataSet getData()
      Returne the original data for the method.
      Specified by:
      getData in interface IndependenceTest
      Returns:
      This data.
      See Also:
    • toString

      public String toString()
      Description copied from interface: IndependenceTest
      Returns a string representation of this test.
      Specified by:
      toString in interface IndependenceTest
      Overrides:
      toString in class Object
      Returns:
      a string representation of this test.
    • isVerbose

      public boolean isVerbose()
      Returns whether verbose output should be printed.
      Specified by:
      isVerbose in interface IndependenceTest
      Returns:
      This.
    • setVerbose

      public void setVerbose(boolean verbose)
      Sets whether verbose output should be printed.
      Specified by:
      setVerbose in interface IndependenceTest
      Parameters:
      verbose - True, if so.