genetiK::ga::Individual Class Reference
[Genetic Algorithm framework]

Individual: GA-specific Individual. More...

#include <Individual.h>

Inheritance diagram for genetiK::ga::Individual:

[legend]Collaboration diagram for genetiK::ga::Individual:

[legend]List of all members.

Public Member Functions
	Individual (unsigned int length)
	creates an Individual by allocating length bits and filling them with random data. It should be called by subclasses' unsigned int constructors.
	Individual (const Individual &individual)
	Copy constructor.
virtual	~Individual (void)
	destructor
virtual double	fitness ()=0
	abstract fitness function
virtual genetiK::Individual *	copy () const =0
	abstract copy function
virtual int	mutate (const double mutationProbability)
	standard one-point mutation
virtual int	crossOver (genetiK::Individual *i, genetiK::Individual **child1, genetiK::Individual **child2)
	standard one-point crossover
unsigned int	getLength ()
	Returns Individual's length.
bool	operator[] (unsigned int index) const
	[] operator
virtual std::string	toString () const
	outputs the individual as a sequence of 0s and 1s.
Protected Attributes
unsigned int	length
unsigned int *	bitArray
unsigned char	blockNum

---

Detailed Description

Individual: GA-specific Individual.

This class extends the generic genetiK::Individual. It represents an individual as a string of bits.

---

Constructor & Destructor Documentation

genetiK::ga::Individual::Individual (  unsigned int  length  )

creates an Individual by allocating length bits and filling them with random data. It should be called by subclasses' unsigned int constructors. Todo: add a constructor that allocates memory but does not initialize with random data Parameters: length  specifies the length of the individual to be created See also: Individual(const Individual& individual)

genetiK::ga::Individual::Individual (  const Individual &  individual  )

Copy constructor. Creates this individual by copying individual. It should be called by subclasses' copy constructors. Parameters: individual  the individual to be copied See also: copy and Individual(unsigned int length)

genetiK::ga::Individual::~Individual (  void   )  [virtual]

destructor Destroys this instance, freeing the allocated bits See also: Individual(unsigned int length) and Individual(const Individual& individual) Reimplemented from genetiK::Individual.

---

Member Function Documentation

virtual genetiK::Individual* genetiK::ga::Individual::copy (   )  const [pure virtual]

abstract copy function This function must be extended by sublcasses to perform copy. Returns: a copy of the individual See also: Individual(const Individual& individual) Implements genetiK::Individual.

int genetiK::ga::Individual::crossOver (  genetiK::Individual *  i, genetiK::Individual **  child1, genetiK::Individual **  child2 )  [virtual]

standard one-point crossover Performs one-point crossover between this and individual i, saving the resulting children in child1 and child2. Parameters: i  the partner to use to perform crossover. child1  first child. child2  second child. Returns: 0 if the operation was successful See also: mutate(double mutationProbabilty) Implements genetiK::Individual.

virtual double genetiK::ga::Individual::fitness (   )  [pure virtual]

abstract fitness function This function must be extended by sublcasses to calculate the fitness of the individual. Returns: the fitness of the current individual Implements genetiK::Individual.

unsigned int genetiK::ga::Individual::getLength (   )  [inline]

Returns Individual's length. Returns: this.length

int genetiK::ga::Individual::mutate (  const double  mutationProbability  )  [virtual]

standard one-point mutation Performs one-point mutation: flips a each bit of the individual with mutationProbability probability. Parameters: mutationProbability  the probability to mutate a single bit of the Individual Returns: 0 if the operation was successful See also: crossOver Implements genetiK::Individual.

bool genetiK::ga::Individual::operator[] (  unsigned int  index  )  const

[] operator Accesses a single bit of the individual bit string. Parameters: index  0-based index of the bit to retrieve Returns: true if this[index] is 1, false otherwise

string genetiK::ga::Individual::toString (   )  const [virtual]

outputs the individual as a sequence of 0s and 1s. Returns: a sequence of 0s and 1s, representing the bits of the current individual. Reimplemented from genetiK::Individual.

---

Member Data Documentation

unsigned int* genetiK::ga::Individual::bitArray [protected]

array of the actual bits associated with the Individual (as array of int)

unsigned char genetiK::ga::Individual::blockNum [protected]

number of int blocks allocated to store the Individual bits

unsigned int genetiK::ga::Individual::length [protected]

Invididual length (number of bits)

---

The documentation for this class was generated from the following files:

• devel/genetik/src/ga/Individual.h
• devel/genetik/src/ga/Individual.cpp

---