smile.projection.ica

Class LogCosh

java.lang.Object

smile.projection.ica.LogCosh

All Implemented Interfaces:

java.io.Serializable, smile.math.DifferentiableFunction, smile.math.Function

public class LogCosh
extends java.lang.Object
implements smile.math.DifferentiableFunction

A good general-purpose contrast function for ICA.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
LogCosh()

Method Summary

Modifier and Type	Method and Description
double	f(double x)
double	g(double x)
double	g2(double x)

Methods inherited from class java.lang.Object

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

Methods inherited from interface smile.math.Function

apply

Constructor Detail

LogCosh

public LogCosh()

Method Detail

f

public double f(double x)

Specified by:

f in interface smile.math.Function

g

public double g(double x)

Specified by:

g in interface smile.math.DifferentiableFunction

g2

public double g2(double x)

Specified by:

g2 in interface smile.math.DifferentiableFunction