CMAESOptimizer.FitnessFunction

java.lang.Object
- org.apache.commons.math3.optimization.direct.CMAESOptimizer.FitnessFunction

Enclosing class:

CMAESOptimizer
```
private class CMAESOptimizer.FitnessFunction
extends java.lang.Object
```
Normalizes fitness values to the range [0,1]. Adds a penalty to the fitness value if out of range. The penalty is adjusted by calling setValueRange().

Field Summary

Fields
Modifier and Type	Field	Description
`private boolean`	`isRepairMode`	Flag indicating whether the objective variables are forced into their bounds if defined
`private double`	`valueRange`	Determines the penalty for boundary violations

Constructor Summary

Constructors
Constructor Description

FitnessFunction()
Simple constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`isFeasible(double[] x)`
`private double`	`penalty(double[] x, double[] repaired)`
`private double[]`	`repair(double[] x)`
`void`	`setValueRange(double valueRange)`
`double`	`value(double[] point)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - valueRange
```
private double valueRange
```
    Determines the penalty for boundary violations
  - isRepairMode
```
private final boolean isRepairMode
```
    Flag indicating whether the objective variables are forced into their bounds if defined
- Constructor Detail
  - FitnessFunction
```
FitnessFunction()
```
    Simple constructor.
- Method Detail
  - value
```
public double value(double[] point)
```
    Parameters:
    
    point - Normalized objective variables.
    
    Returns:
    
    the objective value + penalty for violated bounds.
  - isFeasible
```
public boolean isFeasible(double[] x)
```
    Parameters:
    
    x - Normalized objective variables.
    
    Returns:
    
    true if in bounds.
  - setValueRange
```
public void setValueRange(double valueRange)
```
    Parameters:
    
    valueRange - Adjusts the penalty computation.
  - repair
```
private double[] repair(double[] x)
```
    Parameters:
    
    x - Normalized objective variables.
    
    Returns:
    
    the repaired (i.e. all in bounds) objective variables.
  - penalty
```
private double penalty(double[] x,
                       double[] repaired)
```
    Parameters:
    
    x - Normalized objective variables.
    
    repaired - Repaired objective variables.
    
    Returns:
    
    Penalty value according to the violation of the bounds.