AbsoluteConvergence Class

Absolute convergence criteria.

Inheritance Hierarchy

SystemObject
Accord.MathAbsoluteConvergence

Namespace: Accord.Math
Assembly: Accord.Math (in Accord.Math.dll) Version: 3.8.0

Syntax

Copy

public class AbsoluteConvergence : ISingleValueConvergence, 
	IConvergence<double>, IConvergence

Public Class AbsoluteConvergence
	Implements ISingleValueConvergence, IConvergence(Of Double), 
	IConvergence

Request Example View Source

The AbsoluteConvergence type exposes the following members.

Constructors

	Name	Description
	AbsoluteConvergence	Initializes a new instance of the AbsoluteConvergence class.
	AbsoluteConvergence(Int32, Double, Double)	Initializes a new instance of the AbsoluteConvergence class.

Top

Properties

	Name	Description
	CurrentIteration	Gets or sets the current iteration number.
	HasConverged	Gets whether the algorithm has converged.
	Iterations	Obsolete. Please use MaxIterations instead.
	MaxIterations	Gets or sets the maximum number of iterations performed by the iterative algorithm. Default is 100.
	NewValue	Gets or sets the watched value after the iteration.
	OldValue	Gets the watched value before the iteration.
	Tolerance	Gets or sets the maximum change in the watched value after an iteration of the algorithm used to detect convergence. Default is 0.

Top

Methods

	Name	Description
	Clear	Clears this instance.
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	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.)

Top

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.)

Top

Remarks

This class can be used to track progress and convergence of methods which rely on the absolute change of a value.

Examples

Copy

// Create a new convergence criteria for a maximum of 10 iterations
var criteria = new AbsoluteConvergence(iterations: 10, tolerance: 0.1);

int progress = 1;

do
{
    // Do some processing...


    // Update current iteration information:
    criteria.NewValue = 12345.6 / progress++;

} while (!criteria.HasConverged);


// The method will converge after reaching the 
// maximum of 10 iterations with a final value
// of 1371.73:

int iterations = criteria.CurrentIteration; // 10
double value = criteria.OldValue; // 1371.7333333

Reference

Accord.Math Namespace