javanpst.distributions.common.continuous

Class WeibullDistribution

java.lang.Object

javanpst.distributions.common.continuous.WeibullDistribution

All Implemented Interfaces:

Distribution

public class WeibullDistribution
extends java.lang.Object
implements Distribution

A Weibull distribution.

Constructor Summary

Constructors

Constructor and Description
WeibullDistribution() Default builder.
WeibullDistribution(double lambda, double k) Builder.
WeibullDistribution(WeibullDistribution old) Copy constructor Creates a copy of a given Laplace distribution

Method Summary

Modifier and Type	Method and Description
double	computeCumulativeProbability(double x) Computes cumulative probability at a given point of the Weibull distribution.
double	computeProbability(double x) Computes mass probability at a given point of the Weibull distribution.
double	getK() Gets the k parameter
double	getLambda() Gets the lambda parameter
void	setK(double value) Sets k K value must be positive
void	setLambda(double value) Sets lambda Lambda value must be positive
java.lang.String	toString() To String method.

Methods inherited from class java.lang.Object

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

Constructor Detail

WeibullDistribution

public WeibullDistribution()

Default builder. Creates a Weibull distribution with parameters lambda = 1 and k = 1

WeibullDistribution

public WeibullDistribution(double lambda,
                           double k)

Builder. Creates a Weibull distribution with specified lambda and k parameters Lambda and k must be positive

Parameters:

lambda - lambda parameter of the distribution

k - k parameter of the distribution

WeibullDistribution

public WeibullDistribution(WeibullDistribution old)

Copy constructor Creates a copy of a given Laplace distribution

Parameters:

old - Laplace distribution to copy

Method Detail

setLambda

public void setLambda(double value)

Sets lambda Lambda value must be positive

Parameters:

value - lambda value

setK

public void setK(double value)

Sets k K value must be positive

Parameters:

value - k value

getLambda

public double getLambda()

Gets the lambda parameter

Returns:

value of lambda

getK

public double getK()

Gets the k parameter

Returns:

value of k

computeProbability

public double computeProbability(double x)

Computes mass probability at a given point of the Weibull distribution.

Specified by:

computeProbability in interface Distribution

Parameters:

x - point selected

Returns:

mass probability at 'x'

computeCumulativeProbability

public double computeCumulativeProbability(double x)

Computes cumulative probability at a given point of the Weibull distribution.

Specified by:

computeCumulativeProbability in interface Distribution

Parameters:

x - point selected

Returns:

cumulative probability at 'x'

toString

public java.lang.String toString()

To String method.

Overrides:

toString in class java.lang.Object

Returns:

string representation of the distribution