de.lmu.ifi.dbs.elki.math.statistics
Class StudentDistribution

java.lang.Object
  de.lmu.ifi.dbs.elki.math.statistics.StudentDistribution

public class StudentDistribution
extends Object

Tabelarizes the values for student distribution.

Field Summary

static double	_0005 Available alpha values.
static double	_0010 Available alpha values.
static double	_0050 Available alpha values.
static double	_0100 Available alpha values.
static double	_0250 Available alpha values.
static double	_0500 Available alpha values.
static double	_1000 Available alpha values.
static double	_2000 Available alpha values.
static double	_4000 Available alpha values.
static double	_6000 Available alpha values.
static double	_8000 Available alpha values.
static double	_9000 Available alpha values.
static double	_9500 Available alpha values.
static double	_9750 Available alpha values.
static double	_9900 Available alpha values.
static double	_9950 Available alpha values.
static double	_9990 Available alpha values.
static double	_9995 Available alpha values.
private static Map<Integer,Map<Double,Double>>	tValues Holds the t-values.

Constructor Summary

StudentDistribution()

Method Summary

private static void	put(int n, double[] values) Stores the specified t-values for the given degree of freedom.
static double	tValue(double alpha, int n) Returns the t-value for the given alpha-value and degree of freedom.

Methods inherited from class java.lang.Object

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

Field Detail

_6000

public static double _6000

Available alpha values.

_8000

public static double _8000

Available alpha values.

_9000

public static double _9000

Available alpha values.

_9500

public static double _9500

Available alpha values.

_9750

public static double _9750

Available alpha values.

_9900

public static double _9900

Available alpha values.

_9950

public static double _9950

Available alpha values.

_9990

public static double _9990

Available alpha values.

_9995

public static double _9995

Available alpha values.

_4000

public static double _4000

Available alpha values.

_2000

public static double _2000

Available alpha values.

_1000

public static double _1000

Available alpha values.

_0500

public static double _0500

Available alpha values.

_0250

public static double _0250

Available alpha values.

_0100

public static double _0100

Available alpha values.

_0050

public static double _0050

Available alpha values.

_0010

public static double _0010

Available alpha values.

_0005

public static double _0005

Available alpha values.

tValues

private static Map<Integer,Map<Double,Double>> tValues

Holds the t-values.

Constructor Detail

StudentDistribution

public StudentDistribution()

Method Detail

tValue

public static double tValue(double alpha,
                            int n)

Returns the t-value for the given alpha-value and degree of freedom.

Parameters:

alpha - the alpha value

n - the degree of freedom

Returns:

the t-value for the given alpha-value and degree of freedom

put

private static void put(int n,
                        double[] values)

Stores the specified t-values for the given degree of freedom.

Parameters:

n - the degree of freedom

values - the t-values