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

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

Constructor Summary

Cloglog()

Method Summary

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)