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OptimizationFunction2D Class
Base class for two dimenstional function optimization.
Inheritance Hierarchy
SystemObject
  Accord.GeneticOptimizationFunction2D

Namespace:  Accord.Genetic
Assembly:  Accord.Genetic (in Accord.Genetic.dll) Version: 3.8.0
Syntax
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public abstract class OptimizationFunction2D : IFitnessFunction
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The OptimizationFunction2D type exposes the following members.

Constructors
  NameDescription
Public methodOptimizationFunction2D
Initializes a new instance of the OptimizationFunction2D class.
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Properties
  NameDescription
Public propertyMode
Optimization mode.
Public propertyRangeX
X variable's optimization range.
Public propertyRangeY
Y variable's optimization range.
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Methods
  NameDescription
Public methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Public methodEvaluate
Evaluates chromosome.
Protected methodFinalize
Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
(Inherited from Object.)
Public methodGetHashCode
Serves as the default hash function.
(Inherited from Object.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Public methodOptimizationFunction
Function to optimize.
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
Public methodTranslate
Translates genotype to phenotype
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Extension Methods
  NameDescription
Public Extension MethodHasMethod
Checks whether an object implements a method with the given name.
(Defined by ExtensionMethods.)
Public Extension MethodIsEqual
Compares two objects for equality, performing an elementwise comparison if the elements are vectors or matrices.
(Defined by Matrix.)
Public Extension MethodTo(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.)
Public Extension MethodToTOverloaded.
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.)
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Remarks

The class is aimed to be used for two dimensional function optimization problems. It implements all methods of IFitnessFunction interface and requires overriding only one method - OptimizationFunction(Double, Double), which represents the function to optimize.

Note Note
The optimization function should be greater than 0 on the specified optimization range.

The class works only with binary chromosomes (BinaryChromosome).

Sample usage:

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// define optimization function
public class UserFunction : OptimizationFunction2D
{
       public UserFunction( ) :
           base( new Range( -4, 4 ), new Range( -4, 4 ) ) { }

    public override double OptimizationFunction( double x, double y )
       {
           return ( Math.Cos( y ) * x * y ) / ( 2 - Math.Sin( x ) );
       }
}
...
// create genetic population
Population population = new Population( 40,
       new BinaryChromosome( 32 ),
       new UserFunction( ),
       new EliteSelection( ) );
   // run one epoch of the population
   population.RunEpoch( );
See Also