Logcosh Class

Log-cosh (Hyperbolic Tangent) contrast function.

Inheritance Hierarchy

SystemObject
Accord.Statistics.Analysis.ContrastFunctionsLogcosh

Namespace: Accord.Statistics.Analysis.ContrastFunctions
Assembly: Accord.Statistics (in Accord.Statistics.dll) Version: 3.8.0

Syntax

[SerializableAttribute]
public class Logcosh : IContrastFunction

<SerializableAttribute>
Public Class Logcosh
	Implements IContrastFunction

The Logcosh type exposes the following members.

Constructors

	Name	Description
	Logcosh	Initializes a new instance of the Logcosh class.
	Logcosh(Double)	Initializes a new instance of the Logcosh class.

Properties

	Name	Description
	Alpha	Gets the exponential log-cosh constant.

Methods

	Name	Description
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	Evaluate	Contrast function.
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

Extension Methods

	Name	Description
	HasMethod	Checks whether an object implements a method with the given name. (Defined by ExtensionMethods.)
	IsEqual	Compares two objects for equality, performing an elementwise comparison if the elements are vectors or matrices. (Defined by Matrix.)
	To(Type)	Overloaded. Converts an object into another type, irrespective of whether the conversion can be done at compile time or not. This can be used to convert generic types to numeric types during runtime. (Defined by ExtensionMethods.)
	ToT	Overloaded. Converts an object into another type, irrespective of whether the conversion can be done at compile time or not. This can be used to convert generic types to numeric types during runtime. (Defined by ExtensionMethods.)

Remarks

According to Hyvärinen, the Logcosh contrast function is a good general-purpose contrast function.