org.apache.commons.math3.optimization.direct
Class CMAESOptimizer.PopulationSize

java.lang.Object
  org.apache.commons.math3.optimization.direct.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).

Since:

3.1

Constructor Summary

CMAESOptimizer.PopulationSize(int size)

Method Summary

int	getPopulationSize()

Methods inherited from class java.lang.Object

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

Constructor Detail

CMAESOptimizer.PopulationSize

public CMAESOptimizer.PopulationSize(int size)
                              throws NotStrictlyPositiveException

Parameters:

size - Population size.

Throws:

NotStrictlyPositiveException - if size <= 0.

Method Detail

getPopulationSize

public int getPopulationSize()

Returns:

the population size.