Package edu.cmu.tetrad.search.test

Class IndTestBlocksWilkes

java.lang.Object

edu.cmu.tetrad.search.test.IndTestBlocksWilkes

All Implemented Interfaces:

BlockTest, IndependenceTest, EffectiveSampleSizeSettable

public class IndTestBlocksWilkes
extends Object
implements IndependenceTest, BlockTest, EffectiveSampleSizeSettable

Block-level CI test using Wilks-rank. Robust to |Y| < |X| by padding Y from the leftover observed pool and, if needed, by subsetting X to |Y|. Thread-safe LRU caches preserved.

Constructor Summary

Constructors

Constructor	Description
IndTestBlocksWilkes(BlockSpec blockSpec)	Constructs an instance of IndTestBlocks using the provided block specification.

Method Summary

Modifier and Type	Method	Description
IndependenceResult	checkIndependence(Node x, Node y, Set<Node> z)	Checks the independence between two variables x and y given a conditioning set z.
double	getAlpha()	Returns the significance level of the independence test.
BlockSpec	getBlockSpec()	Retrieves the block specification associated with this instance of IndTestBlocks.
DataModel	getData()	Retrieves the data model associated with this test.
int	getEffectiveSampleSize()	Returns the effective sample size.
List<Node>	getVariables()	Retrieves the list of variables associated with this independence test.
boolean	isVerbose()	Returns true if the test prints verbose output.
void	setAlpha(double alpha)	Sets the significance level.
void	setEffectiveSampleSize(int effectiveSampleSize)	Sets the effective sample size, or -1 if the actual sample size should be used.
void	setVerbose(boolean verbose)	Sets whether this test will print verbose output.

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.cmu.tetrad.search.test.IndependenceTest

checkIndependence, determines, getCov, getDataSets, getSampleSize, getVariable, getVariableNames, indTestSubset, toString

Constructor Details

IndTestBlocksWilkes

public IndTestBlocksWilkes(BlockSpec blockSpec)

Constructs an instance of IndTestBlocks using the provided block specification. This class is used for conducting independence tests based on a dataset's block structure.

Parameters:

blockSpec - the block specification containing metadata about blocks, variables, and the associated dataset. Must not be null. Throws IllegalArgumentException if blockSpec is null or invalid.

Method Details

checkIndependence

public IndependenceResult checkIndependence(Node x,
 Node y,
 Set<Node> z)

Description copied from interface: IndependenceTest

Checks the independence between two variables x and y given a conditioning set z.

Specified by:

checkIndependence in interface IndependenceTest

Parameters:

x - The first variable to test, represented as a Node object.

y - The second variable to test, represented as a Node object.

z - The set of conditioning variables, represented as a Set of Node objects.

Returns:

An IndependenceResult object representing the outcome of the independence test.

getVariables

public List<Node> getVariables()

Description copied from interface: IndependenceTest

Retrieves the list of variables associated with this independence test.

Specified by:

getVariables in interface IndependenceTest

Returns:

A list of Node objects representing the variables.

getData

public DataModel getData()

Description copied from interface: IndependenceTest

Retrieves the data model associated with this test.

Specified by:

getData in interface IndependenceTest

Returns:

A DataModel object representing the data model.

isVerbose

public boolean isVerbose()

Description copied from interface: IndependenceTest

Returns true if the test prints verbose output.

Specified by:

isVerbose in interface IndependenceTest

Returns:

True if the case.

setVerbose

public void setVerbose(boolean verbose)

Description copied from interface: IndependenceTest

Sets whether this test will print verbose output.

Specified by:

setVerbose in interface IndependenceTest

Parameters:

verbose - True, if so.

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.

setAlpha

public void setAlpha(double alpha)

Description copied from interface: IndependenceTest

Sets the significance level.

Specified by:

setAlpha in interface IndependenceTest

Parameters:

alpha - This level.

getBlockSpec

public BlockSpec getBlockSpec()

Retrieves the block specification associated with this instance of IndTestBlocks.

Specified by:

getBlockSpec in interface BlockTest

Returns:

the block specification containing metadata about blocks, variables, and the associated dataset.

getEffectiveSampleSize

public int getEffectiveSampleSize()

Description copied from interface: EffectiveSampleSizeSettable

Returns the effective sample size.

Specified by:

getEffectiveSampleSize in interface EffectiveSampleSizeSettable

Returns:

the effective sample size

setEffectiveSampleSize

public void setEffectiveSampleSize(int effectiveSampleSize)

Description copied from interface: EffectiveSampleSizeSettable

Sets the effective sample size, or -1 if the actual sample size should be used.

Specified by:

setEffectiveSampleSize in interface EffectiveSampleSizeSettable

Parameters:

effectiveSampleSize - the effective sample size