FitnessFunction (biojava-legacy 1.9.5 API)

```
public interface FitnessFunction
```
Calculates the fitness of an Organism in a Population of Organisms

Since:

1.5

Version:

1.1

Author:

Mark Schreiber, Susanne Merz, Andreas Dräger

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`double[]`	`fitness(Organism org, Population pop, GeneticAlgorithm genAlg)`	Calculates the fitness of `org`.

- Method Detail
  - fitness
```
double[] fitness(Organism org,
                 Population pop,
                 GeneticAlgorithm genAlg)
```
    Calculates the fitness of org. This can be done independently of the Population pop (by ignoring the argument in your implementation) or dependent on the other members of the Population pop. Every implementation of this function should assign the fitness value computed in this function to the given organism. This is important so that the organism knows its current fitness. Note that for simple problems this fitness array will contain only one single value. However, to enable multi-objective fitness functions this has to be an array.
    
    Parameters:
    
    org - The Organism to score
    
    pop - The Population to consider
    
    genAlg - the parentGeneticAlgorithm
    
    Returns:
    
    the fitness score.