Package org.hipparchus.optim.nonlinear.scalar.noderiv

Class CMAESOptimizer.PopulationSize

java.lang.Object

org.hipparchus.optim.nonlinear.scalar.noderiv.CMAESOptimizer.PopulationSize

All Implemented Interfaces:

OptimizationData

Enclosing class:

CMAESOptimizer

public static class CMAESOptimizer.PopulationSize
extends Object
implements OptimizationData

Population size. The number of offspring is the primary strategy parameter. In the absence of better clues, a good default could be an integer close to 4 + 3 ln(n), where n is the number of optimized parameters. Increasing the population size improves global search properties at the expense of speed (which in general decreases at most linearly with increasing population size).

Constructor Summary

Constructors

Constructor	Description
PopulationSize(int size)	Simple constructor.

Method Summary

Modifier and Type	Method	Description
int	getPopulationSize()	Get population size.

Methods inherited from class java.lang.Object

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

Constructor Details

PopulationSize

public PopulationSize(int size)
               throws MathIllegalArgumentException

Simple constructor.

Parameters:

size - Population size.

Throws:

MathIllegalArgumentException - if size <= 0.

Method Details

getPopulationSize

public int getPopulationSize()

Get population size.

Returns:

the population size