Package edu.cmu.tetrad.search.test

Class IndTestMulti

java.lang.Object

edu.cmu.tetrad.search.test.IndTestMulti

All Implemented Interfaces:

IndependenceTest

public final class IndTestMulti
extends Object
implements IndependenceTest

A class that represents a pooled independence test for multiple data sets.

Constructor Summary

Constructors

Constructor	Description
IndTestMulti(List<IndependenceTest> independenceTests, ResolveSepsets.Method method)	Constructs a new pooled independence test for the given data sets.

Method Summary

Modifier and Type	Method	Description
IndependenceResult	checkIndependence(Node x, Node y, Set<Node> z)	Determines whether variable x is independent of variable y given a list of conditioning variables z.
boolean	determines(List<Node> z, Node x)	Determines whether variable x is independent of variable y given a list of conditioning variables z.
double	getAlpha()	Gets the getModel significance level.
DataSet	getData()	Retrieves the data set.
List<Node>	getVariables()	Retrieves the list of variables associated with this object.
IndependenceTest	indTestSubset(List<Node> vars)	Returns an Independence test for a sublist of the variables.
boolean	isVerbose()	Returns true if the test prints verbose output.
void	setAlpha(double alpha)	Sets the significance level for the independence test.
void	setVerbose(boolean verbose)	Sets whether verbose output should be printed during the test.
String	toString()	Returns a string representation of this object, which includes the alpha value of the independence test.

Methods inherited from class java.lang.Object

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

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

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

Constructor Details

IndTestMulti

public IndTestMulti(List<IndependenceTest> independenceTests,
 ResolveSepsets.Method method)

Constructs a new pooled independence test for the given data sets.

Parameters:

independenceTests - the independence tests to pool.

method - the method to use for pooling.

See Also:

• ResolveSepsets.Method

Method Details

indTestSubset

public IndependenceTest indTestSubset(List<Node> vars)

Returns an Independence test for a sublist of the variables.

Specified by:

indTestSubset in interface IndependenceTest

Parameters:

vars - The sublist of variables.

Returns:

an IndependenceTest object

checkIndependence

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

Determines whether variable x is independent of variable y given a list of conditioning variables z.

Specified by:

checkIndependence in interface IndependenceTest

Parameters:

x - a Node object

y - a Node object

z - a Set object

Returns:

a IndependenceResult object

See Also:

• IndependenceResult

getAlpha

public double getAlpha()

Gets the getModel significance level.

Specified by:

getAlpha in interface IndependenceTest

Returns:

a double

setAlpha

public void setAlpha(double alpha)

Sets the significance level for the independence test.

Specified by:

setAlpha in interface IndependenceTest

Parameters:

alpha - The significance level to set.

getVariables

public List<Node> getVariables()

Retrieves the list of variables associated with this object.

Specified by:

getVariables in interface IndependenceTest

Returns:

the list of variables associated with this object.

determines

public boolean determines(List<Node> z,
 Node x)
                   throws UnsupportedOperationException

Determines whether variable x is independent of variable y given a list of conditioning variables z.

Parameters:

z - A list of conditioning variables.

x - The variable x.

Returns:

True if variable x is independent of variable y given the conditioning variables z, false otherwise.

Throws:

UnsupportedOperationException - if the method is not implemented.

getData

public DataSet getData()

Retrieves the data set.

Specified by:

getData in interface IndependenceTest

Returns:

the data set.

See Also:

• DataSet
• ICovarianceMatrix
• DataModel

toString

public String toString()

Returns a string representation of this object, which includes the alpha value of the independence test.

Specified by:

toString in interface IndependenceTest

Overrides:

toString in class Object

Returns:

the string representation of this object

isVerbose

public boolean isVerbose()

Returns true if the test prints verbose output.

Specified by:

isVerbose in interface IndependenceTest

Returns:

True if the test prints verbose output, false otherwise.

setVerbose

public void setVerbose(boolean verbose)

Sets whether verbose output should be printed during the test.

Specified by:

setVerbose in interface IndependenceTest

Parameters:

verbose - True to enable verbose output, false otherwise.