Package org.apache.commons.math.stat.inference

Class TestUtils

java.lang.Object

org.apache.commons.math.stat.inference.TestUtils

public class TestUtils
extends Object

A collection of static methods to create inference test instances or to perform inference tests.

The set methods are not compatible with using the class in multiple threads, and have therefore been deprecated (along with the getters). The setters and getters will be removed in version 3.0.

Since:

1.1

Method Summary

Modifier and Type	Method	Description
static double	chiSquare(double[] expected, long[] observed)
static double	chiSquare(long[][] counts)
static double	chiSquareDataSetsComparison(long[] observed1, long[] observed2)
static double	chiSquareTest(double[] expected, long[] observed)
static boolean	chiSquareTest(double[] expected, long[] observed, double alpha)
static double	chiSquareTest(long[][] counts)
static boolean	chiSquareTest(long[][] counts, double alpha)
static double	chiSquareTestDataSetsComparison(long[] observed1, long[] observed2)
static boolean	chiSquareTestDataSetsComparison(long[] observed1, long[] observed2, double alpha)
static ChiSquareTest	getChiSquareTest()	Deprecated. 2.2 will be removed in 3.0
static OneWayAnova	getOneWayAnova()	Deprecated. 2.2 will be removed in 3.0
static TTest	getTTest()	Deprecated. 2.2 will be removed in 3.0
static UnknownDistributionChiSquareTest	getUnknownDistributionChiSquareTest()	Deprecated. 2.2 will be removed in 3.0
static double	homoscedasticT(double[] sample1, double[] sample2)
static double	homoscedasticT(StatisticalSummary sampleStats1, StatisticalSummary sampleStats2)
static double	homoscedasticTTest(double[] sample1, double[] sample2)
static boolean	homoscedasticTTest(double[] sample1, double[] sample2, double alpha)
static double	homoscedasticTTest(StatisticalSummary sampleStats1, StatisticalSummary sampleStats2)
static double	oneWayAnovaFValue(Collection<double[]> categoryData)
static double	oneWayAnovaPValue(Collection<double[]> categoryData)
static boolean	oneWayAnovaTest(Collection<double[]> categoryData, double alpha)
static double	pairedT(double[] sample1, double[] sample2)
static double	pairedTTest(double[] sample1, double[] sample2)
static boolean	pairedTTest(double[] sample1, double[] sample2, double alpha)
static void	setChiSquareTest(ChiSquareTest chiSquareTest)	Deprecated. 2.2 will be removed in 3.0 - not compatible with use from multiple threads
static void	setChiSquareTest(TTest chiSquareTest)	Deprecated. 2.2 will be removed in 3.0 - not compatible with use from multiple threads
static void	setOneWayAnova(OneWayAnova oneWayAnova)	Deprecated. 2.2 will be removed in 3.0 - not compatible with use from multiple threads
static void	setUnknownDistributionChiSquareTest(UnknownDistributionChiSquareTest unknownDistributionChiSquareTest)	Deprecated. 2.2 will be removed in 3.0 - not compatible with use from multiple threads
static double	t(double[] sample1, double[] sample2)
static double	t(double mu, double[] observed)
static double	t(double mu, StatisticalSummary sampleStats)
static double	t(StatisticalSummary sampleStats1, StatisticalSummary sampleStats2)
static double	tTest(double[] sample1, double[] sample2)
static boolean	tTest(double[] sample1, double[] sample2, double alpha)
static double	tTest(double mu, double[] sample)
static boolean	tTest(double mu, double[] sample, double alpha)
static double	tTest(double mu, StatisticalSummary sampleStats)
static boolean	tTest(double mu, StatisticalSummary sampleStats, double alpha)
static double	tTest(StatisticalSummary sampleStats1, StatisticalSummary sampleStats2)
static boolean	tTest(StatisticalSummary sampleStats1, StatisticalSummary sampleStats2, double alpha)

Methods inherited from class java.lang.Object

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

Method Details

setChiSquareTest

@Deprecated
public static void setChiSquareTest(TTest chiSquareTest)

Deprecated.

2.2 will be removed in 3.0 - not compatible with use from multiple threads

Set the (singleton) TTest instance.

Parameters:

chiSquareTest - the new instance to use

Since:

1.2

getTTest

@Deprecated
public static TTest getTTest()

Deprecated.

2.2 will be removed in 3.0

Return a (singleton) TTest instance. Does not create a new instance.

Returns:

a TTest instance

setChiSquareTest

@Deprecated
public static void setChiSquareTest(ChiSquareTest chiSquareTest)

Deprecated.

2.2 will be removed in 3.0 - not compatible with use from multiple threads

Set the (singleton) ChiSquareTest instance.

Parameters:

chiSquareTest - the new instance to use

Since:

1.2

getChiSquareTest

@Deprecated
public static ChiSquareTest getChiSquareTest()

Deprecated.

2.2 will be removed in 3.0

Return a (singleton) ChiSquareTest instance. Does not create a new instance.

Returns:

a ChiSquareTest instance

setUnknownDistributionChiSquareTest

@Deprecated
public static void setUnknownDistributionChiSquareTest(UnknownDistributionChiSquareTest unknownDistributionChiSquareTest)

Deprecated.

2.2 will be removed in 3.0 - not compatible with use from multiple threads

Set the (singleton) UnknownDistributionChiSquareTest instance.

Parameters:

unknownDistributionChiSquareTest - the new instance to use

Since:

1.2

getUnknownDistributionChiSquareTest

@Deprecated
public static UnknownDistributionChiSquareTest getUnknownDistributionChiSquareTest()

Deprecated.

2.2 will be removed in 3.0

Return a (singleton) UnknownDistributionChiSquareTest instance. Does not create a new instance.

Returns:

a UnknownDistributionChiSquareTest instance

setOneWayAnova

@Deprecated
public static void setOneWayAnova(OneWayAnova oneWayAnova)

Deprecated.

2.2 will be removed in 3.0 - not compatible with use from multiple threads

Set the (singleton) OneWayAnova instance

Parameters:

oneWayAnova - the new instance to use

Since:

1.2

getOneWayAnova

@Deprecated
public static OneWayAnova getOneWayAnova()

Deprecated.

2.2 will be removed in 3.0

Return a (singleton) OneWayAnova instance. Does not create a new instance.

Returns:

a OneWayAnova instance

Since:

1.2

homoscedasticT

public static double homoscedasticT(double[] sample1,
 double[] sample2)
                             throws IllegalArgumentException

Throws:

IllegalArgumentException

See Also:

• TTest.homoscedasticT(double[], double[])

homoscedasticT

public static double homoscedasticT(StatisticalSummary sampleStats1,
 StatisticalSummary sampleStats2)
                             throws IllegalArgumentException

Throws:

IllegalArgumentException

See Also:

• TTest.homoscedasticT(org.apache.commons.math.stat.descriptive.StatisticalSummary, org.apache.commons.math.stat.descriptive.StatisticalSummary)

homoscedasticTTest

public static boolean homoscedasticTTest(double[] sample1,
 double[] sample2,
 double alpha)
                                  throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

See Also:

• TTest.homoscedasticTTest(double[], double[], double)

homoscedasticTTest

public static double homoscedasticTTest(double[] sample1,
 double[] sample2)
                                 throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

See Also:

• TTest.homoscedasticTTest(double[], double[])

homoscedasticTTest

public static double homoscedasticTTest(StatisticalSummary sampleStats1,
 StatisticalSummary sampleStats2)
                                 throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

See Also:

• TTest.homoscedasticTTest(org.apache.commons.math.stat.descriptive.StatisticalSummary, org.apache.commons.math.stat.descriptive.StatisticalSummary)

pairedT

public static double pairedT(double[] sample1,
 double[] sample2)
                      throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

See Also:

• TTest.pairedT(double[], double[])

pairedTTest

public static boolean pairedTTest(double[] sample1,
 double[] sample2,
 double alpha)
                           throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

See Also:

• TTest.pairedTTest(double[], double[], double)

pairedTTest

public static double pairedTTest(double[] sample1,
 double[] sample2)
                          throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

See Also:

• TTest.pairedTTest(double[], double[])

t

public static double t(double mu,
 double[] observed)
                throws IllegalArgumentException

Throws:

IllegalArgumentException

See Also:

• TTest.t(double, double[])

t

public static double t(double mu,
 StatisticalSummary sampleStats)
                throws IllegalArgumentException

Throws:

IllegalArgumentException

See Also:

• TTest.t(double, org.apache.commons.math.stat.descriptive.StatisticalSummary)

t

public static double t(double[] sample1,
 double[] sample2)
                throws IllegalArgumentException

Throws:

IllegalArgumentException

See Also:

• TTest.t(double[], double[])

t

public static double t(StatisticalSummary sampleStats1,
 StatisticalSummary sampleStats2)
                throws IllegalArgumentException

Throws:

IllegalArgumentException

See Also:

• TTest.t(org.apache.commons.math.stat.descriptive.StatisticalSummary, org.apache.commons.math.stat.descriptive.StatisticalSummary)

tTest

public static boolean tTest(double mu,
 double[] sample,
 double alpha)
                     throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

See Also:

• TTest.tTest(double, double[], double)

tTest

public static double tTest(double mu,
 double[] sample)
                    throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

See Also:

• TTest.tTest(double, double[])

tTest

public static boolean tTest(double mu,
 StatisticalSummary sampleStats,
 double alpha)
                     throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

See Also:

• TTest.tTest(double, org.apache.commons.math.stat.descriptive.StatisticalSummary, double)

tTest

public static double tTest(double mu,
 StatisticalSummary sampleStats)
                    throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

See Also:

• TTest.tTest(double, org.apache.commons.math.stat.descriptive.StatisticalSummary)

tTest

public static boolean tTest(double[] sample1,
 double[] sample2,
 double alpha)
                     throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

See Also:

• TTest.tTest(double[], double[], double)

tTest

public static double tTest(double[] sample1,
 double[] sample2)
                    throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

See Also:

• TTest.tTest(double[], double[])

tTest

public static boolean tTest(StatisticalSummary sampleStats1,
 StatisticalSummary sampleStats2,
 double alpha)
                     throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

See Also:

• TTest.tTest(org.apache.commons.math.stat.descriptive.StatisticalSummary, org.apache.commons.math.stat.descriptive.StatisticalSummary, double)

tTest

public static double tTest(StatisticalSummary sampleStats1,
 StatisticalSummary sampleStats2)
                    throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

See Also:

• TTest.tTest(org.apache.commons.math.stat.descriptive.StatisticalSummary, org.apache.commons.math.stat.descriptive.StatisticalSummary)

chiSquare

public static double chiSquare(double[] expected,
 long[] observed)
                        throws IllegalArgumentException

Throws:

IllegalArgumentException

See Also:

• ChiSquareTest.chiSquare(double[], long[])

chiSquare

public static double chiSquare(long[][] counts)
                        throws IllegalArgumentException

Throws:

IllegalArgumentException

See Also:

• ChiSquareTest.chiSquare(long[][])

chiSquareTest

public static boolean chiSquareTest(double[] expected,
 long[] observed,
 double alpha)
                             throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

See Also:

• ChiSquareTest.chiSquareTest(double[], long[], double)

chiSquareTest

public static double chiSquareTest(double[] expected,
 long[] observed)
                            throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

See Also:

• ChiSquareTest.chiSquareTest(double[], long[])

chiSquareTest

public static boolean chiSquareTest(long[][] counts,
 double alpha)
                             throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

See Also:

• ChiSquareTest.chiSquareTest(long[][], double)

chiSquareTest

public static double chiSquareTest(long[][] counts)
                            throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

See Also:

• ChiSquareTest.chiSquareTest(long[][])

chiSquareDataSetsComparison

public static double chiSquareDataSetsComparison(long[] observed1,
 long[] observed2)
                                          throws IllegalArgumentException

Throws:

IllegalArgumentException

Since:

1.2

See Also:

• UnknownDistributionChiSquareTest.chiSquareDataSetsComparison(long[], long[])

chiSquareTestDataSetsComparison

public static double chiSquareTestDataSetsComparison(long[] observed1,
 long[] observed2)
                                              throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

Since:

1.2

See Also:

• UnknownDistributionChiSquareTest.chiSquareTestDataSetsComparison(long[], long[])

chiSquareTestDataSetsComparison

public static boolean chiSquareTestDataSetsComparison(long[] observed1,
 long[] observed2,
 double alpha)
                                               throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

Since:

1.2

See Also:

• UnknownDistributionChiSquareTest.chiSquareTestDataSetsComparison(long[], long[], double)

oneWayAnovaFValue

public static double oneWayAnovaFValue(Collection<double[]> categoryData)
                                throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

Since:

1.2

See Also:

• OneWayAnova.anovaFValue(Collection)

oneWayAnovaPValue

public static double oneWayAnovaPValue(Collection<double[]> categoryData)
                                throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

Since:

1.2

See Also:

• OneWayAnova.anovaPValue(Collection)

oneWayAnovaTest

public static boolean oneWayAnovaTest(Collection<double[]> categoryData,
 double alpha)
                               throws IllegalArgumentException,
MathException

Throws:

IllegalArgumentException

MathException

Since:

1.2

See Also:

• OneWayAnova.anovaTest(Collection,double)