org.statcato.statistics

Class FProbabilityDistribution

java.lang.Object

org.statcato.statistics.ProbabilityDistribution

org.statcato.statistics.FProbabilityDistribution

public class FProbabilityDistribution
extends ProbabilityDistribution

F probability distribution class.

Since:

1.0

Constructor Summary

Constructors

Constructor and Description
FProbabilityDistribution(double v1, double v2) Constructor, given the numerator and denominator degrees of freedom.

Method Summary

Modifier and Type	Method and Description
double	cumulativeProbability(double x) Returns the cumulative probabililty up to x.
double	density(double x) Returns the density of the distribution at x.
double	inverseCumulativeProbability(double area) Returns the inverse cumulative probability.

Methods inherited from class org.statcato.statistics.ProbabilityDistribution

inverseCumulativeProbability

Methods inherited from class java.lang.Object

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

Constructor Detail

FProbabilityDistribution

public FProbabilityDistribution(double v1,
                                double v2)

Constructor, given the numerator and denominator degrees of freedom.

Parameters:

v1 - numerator degrees of freedom

v2 - denominator degrees of freedom

Method Detail

density

public double density(double x)

Returns the density of the distribution at x.

Specified by:

density in class ProbabilityDistribution

Parameters:

x -

Returns:

probability density at x

cumulativeProbability

public double cumulativeProbability(double x)

Returns the cumulative probabililty up to x.

Specified by:

cumulativeProbability in class ProbabilityDistribution

Parameters:

x -

Returns:

cumulative probability P(<=x)

inverseCumulativeProbability

public double inverseCumulativeProbability(double area)

Returns the inverse cumulative probability.

Parameters:

area - cumulative probability

Returns:

inverse cumulative probability