Package edu.cmu.tetrad.search

Class DegenerateGaussianScore

java.lang.Object
edu.cmu.tetrad.search.DegenerateGaussianScore
All Implemented Interfaces:
Score
public class DegenerateGaussianScore extends Object implements Score
Implements a degenerate Gaussian BIC score for FGES.

http://proceedings.mlr.press/v104/andrews19a/andrews19a.pdf

Author:
Bryan Andrews

  • Constructor Details

    • DegenerateGaussianScore

      public DegenerateGaussianScore(DataSet dataSet)
      Constructs the score using a covariance matrix.

  • Method Details

    • localScore

      public double localScore(int i, int... parents)
      Calculates the sample likelihood and BIC score for i given its parents in a simple SEM model
      Specified by:
      localScore in interface Score
      Parameters:
      i - The index of the node.
      parents - The indices of the node's parents.
      Returns:
      The score, or NaN if the score cannot be calculated.

    • localScoreDiff

      public double localScoreDiff(int x, int y, int[] z)
      Specified by:
      localScoreDiff in interface Score

    • localScoreDiff

      public double localScoreDiff(int x, int y)
      Specified by:
      localScoreDiff in interface Score

    • localScore

      public double localScore(int i, int parent)
      Specialized scoring method for a single parent. Used to speed up the effect edges search.
      Specified by:
      localScore in interface Score

    • localScore

      public double localScore(int i)
      Specialized scoring method for no parents. Used to speed up the effect edges search.
      Specified by:
      localScore in interface Score

    • getSampleSize

      public int getSampleSize()
      Specified by:
      getSampleSize in interface Score

    • isEffectEdge

      public boolean isEffectEdge(double bump)
      Specified by:
      isEffectEdge in interface Score

    • getVariables

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

    • getVariable

      public Node getVariable(String targetName)
      Specified by:
      getVariable in interface Score

    • getMaxDegree

      public int getMaxDegree()
      Specified by:
      getMaxDegree in interface Score

    • determines

      public boolean determines(List<Node> z, Node y)
      Specified by:
      determines in interface Score

    • getPenaltyDiscount

      public double getPenaltyDiscount()

    • setPenaltyDiscount

      public void setPenaltyDiscount(double penaltyDiscount)

    • getStructurePrior

      public double getStructurePrior()

    • setStructurePrior

      public void setStructurePrior(double structurePrior)

    • toString

      public String toString()
      Specified by:
      toString in interface Score
      Overrides:
      toString in class Object