com.numericalmethod.suanshu.stats.regression.linear.glm.distribution.link

Class Cloglog

java.lang.Object

com.numericalmethod.suanshu.stats.regression.linear.glm.distribution.link.Cloglog

All Implemented Interfaces:

LinkFunction, java.io.Serializable

public class Cloglog
extends java.lang.Object
implements LinkFunction

This class represents the complementary log-log link function:

 g(x) = log(-log(1 - x))
 

See Also:

GeneralizedLinearModel, Serialized Form

Constructor Summary

Constructors

Constructor and Description
Cloglog()

Method Summary

Modifier and Type	Method and Description
double	derivative(double x) Derivative of the link function, i.e., g'(x).
double	inverse(double x) Inverse of the link function, i.e., g-1(x).

Methods inherited from class java.lang.Object

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

Constructor Detail

Cloglog

public Cloglog()

Method Detail

inverse

public double inverse(double x)

Description copied from interface: LinkFunction

Inverse of the link function, i.e., g-1(x).

Specified by:

inverse in interface LinkFunction

Parameters:

x - x

Returns:

g-1(x)

derivative

public double derivative(double x)

Derivative of the link function, i.e., g'(x).

                     1
 g'(x) = -------------------------
          log(1 - x) * log(x - 1)
 

Specified by:

derivative in interface LinkFunction

Parameters:

x -

Returns:

g'(x)