math.stats.distributions

Class StudentsT

java.lang.Object

math.stats.distributions.StudentsT

All Implemented Interfaces:

Distribution

public final class StudentsT
extends Object
implements Distribution

A Student's t probability distribution.

Constructor Summary

Constructors

Constructor and Description
StudentsT(int df) Create a new Student's t distribution with the given degrees of freedom.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
int	hashCode()
double	quantile(double prob) Compute the value of the quantile function at the given probability.
double	rand() Generate a random value from the distribution.

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StudentsT

public StudentsT(int df)

Create a new Student's t distribution with the given degrees of freedom.

Parameters:

df - the degrees of freedom for this distribution.

Method Detail

rand

public double rand()

Description copied from interface: Distribution

Generate a random value from the distribution.

Specified by:

rand in interface Distribution

Returns:

a random value from the distribution.

quantile

public double quantile(double prob)

Description copied from interface: Distribution

Compute the value of the quantile function at the given probability. See quantile function.

Specified by:

quantile in interface Distribution

Parameters:

prob - the probability that the random variable X ≤ q, where q is the quantile value.

Returns:

the value of the quantile function at the given probability.

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object