CMAESOptimizer.PopulationSize

java.lang.Object
- org.apache.commons.math3.optim.nonlinear.scalar.noderiv.CMAESOptimizer.PopulationSize

All Implemented Interfaces:

OptimizationData

Enclosing class:

CMAESOptimizer
```
public static class CMAESOptimizer.PopulationSize
extends java.lang.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).

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  private int lambda
  Population size.
- Constructor Summary
  
  Constructors
  Constructor Description
  
  PopulationSize(int size)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  int getPopulationSize()
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - lambda
```
private final int lambda
```
    Population size.
- Constructor Detail
  - PopulationSize
```
public PopulationSize(int size)
               throws NotStrictlyPositiveException
```
    Parameters:
    
    size - Population size.
    
    Throws:
    
    NotStrictlyPositiveException - if size <= 0.
- Method Detail
  - getPopulationSize
```
public int getPopulationSize()
```
    Returns:
    
    the population size.