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#region Copyright © 2009, De Santiago-Castillo JA. All rights reserved.
//Copyright © 2009 Jose Antonio De Santiago-Castillo
//E-mail:JAntonioDeSantiago@gmail.com
//Web: www.DotNumerics.com
//
#endregion
using System;
using System.Collections.Generic;
using System.Text;
namespace DotNumerics.Optimization
{
/// <summary>
/// Represents a varaible that can be used in a simplex optimization classe.
/// </summary>
public class OptSimplexVariable : OptVariable
{
#region Fields
/// <summary>
/// The scale factor controls the internal variable size. Variable=IntVar*ScaleFactor where IntVar is the internal variable.
/// Try to set the ScaleFactor of the same order that the variable, with this value the internal size will be near to 1 .
/// The default value is 1. This value modifies the changes and accuracy of this variable.
/// </summary>
private double _ScaleFactor = 1;
#endregion
#region Constructor
/// <summary>
/// Initializes a new instance of the OptSimplexVariable class.
/// </summary>
public OptSimplexVariable()
{
}
/// <summary>
/// Initializes a new instance of the OptSimplexVariable class.
/// </summary>
/// <param name="initialGuess">The initial guess.</param>
public OptSimplexVariable(double initialGuess)
{
this._InitialGuess = initialGuess;
}
/// <summary>
/// Initializes a new instance of the OptSimplexVariable class.
/// </summary>
/// <param name="name">The variable name.</param>
/// <param name="initialGuess">The initial guess.</param>
public OptSimplexVariable(string name, double initialGuess)
{
this._Name = name;
this._InitialGuess = initialGuess;
}
/// <summary>
/// Initializes a new instance of the OptSimplexVariable class.
/// </summary>
/// <param name="initialGuess">The initial guess.</param>
/// <param name="scaleFactor">A scale factor used to control the changes and accuracy of this variable.</param>
public OptSimplexVariable(double initialGuess, double scaleFactor)
{
this._InitialGuess = initialGuess;
this.ScaleFactor = scaleFactor;
}
/// <summary>
/// Initializes a new instance of the OptSimplexVariable class.
/// </summary>
/// <param name="initialGuess">The initial guess.</param>
/// <param name="isFixed">Value that indicates if the variable is fixed.</param>
public OptSimplexVariable(double initialGuess, bool isFixed)
{
this._InitialGuess = initialGuess;
this._Fixed = isFixed;
}
/// <summary>
/// Initializes a new instance of the OptSimplexVariable class.
/// </summary>
/// <param name="name">The variable name.</param>
/// <param name="initialGuess">The initial guess.</param>
/// <param name="isFixed">Value that indicates if the variable is fixed.</param>
public OptSimplexVariable(string name, double initialGuess, bool isFixed)
{
this._Name = name;
this._InitialGuess = initialGuess;
this._Fixed = isFixed;
}
/// <summary>
/// Initializes a new instance of the OptSimplexVariable class.
/// </summary>
/// <param name="initialGuess">The initial guess.</param>
/// <param name="isFixed">Value that indicates if the variable is fixed.</param>
/// <param name="scaleFactor">A scale factor used to control the changes and accuracy of this variable.</param>
public OptSimplexVariable(double initialGuess, bool isFixed , double scaleFactor)
{
this._InitialGuess = initialGuess;
this._Fixed = isFixed;
this.ScaleFactor = scaleFactor;
}
/// <summary>
/// Initializes a new instance of the OptSimplexVariable class.
/// </summary>
/// <param name="name">The variable name.</param>
/// <param name="initialGuess">The initial guess.</param>
/// <param name="isFixed">Value that indicates if the variable is fixed.</param>
/// <param name="scaleFactor">A scale factor used to control the changes and accuracy of this variable.</param>
public OptSimplexVariable(string name, double initialGuess, bool isFixed, double scaleFactor)
{
this._Name = name;
this._InitialGuess = initialGuess;
this._Fixed = isFixed;
this.ScaleFactor = scaleFactor;
}
#endregion
#region Properties
/// <summary>
/// The scale factor controls the internal variable size. Variable=IntVar*ScaleFactor where IntVar is the internal variable.
/// Try to set the ScaleFactor of the same order that the variable, with this value the internal size will be near to 1 .
/// The default value is 1. This value modifies the changes and accuracy of this variable.
/// </summary>
public double ScaleFactor
{
get { return _ScaleFactor; }
set
{
if (value <= 0)
{
value = 1;
}
_ScaleFactor = value;
}
}
#endregion
public override string ToString()
{
string s = "n: " + this._Name + ", ig: " + this.InitialGuess.ToString() + ", f: " + this.Fixed.ToString() + ", s: " + this._ScaleFactor.ToString();
return s;
}
}
}
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