Chromosome_Binary Class Reference

Implement a binary-coded chromosome. More...

#include <Chromosome_Binary.h>

Inheritance diagram for Chromosome_Binary:

List of all members.

Public Member Functions
	Chromosome_Binary (const unsigned int nBitPerDimension, const unsigned int nDimension, vector< double > lowerBounds, vector< double > upperBounds)
	Constructor.
virtual void	fromDoubleVector (vector< double > &phenotype)
	Convert a vector of double to a binary chromosome.
virtual vector< double >	toDoubleVector ()
	Decode a binary string into a vector of double values.
virtual Chromosome_Binary *	clone ()
	Clone function.

---

Detailed Description

Implement a binary-coded chromosome.

<Binary chromosome="" implemetation>="">

Copyright (c) 2008 by <Quang Huy / NTU>

See also:

Chromosome | Chromosome_Real

---

Constructor & Destructor Documentation

Chromosome_Binary::Chromosome_Binary	(	const unsigned int	nBitPerDimension,
		const unsigned int	nDimension,
		vector< double >	lowerBounds,
		vector< double >	upperBounds
	)

Constructor.

Parameters:

	nBitPerDimension	Number of bit used for each optimization(search) variable.
	nDimension	Number of optimization(search) variables.
	lowerBounds	Vector of lower bound values.
	upperBounds	Vector of upper bound values.

Implement a binary encoding chromosome.

Remarks:

Note that in binary chromosome, we actually descretize the search space. So be careful with precision loss.

See also:

Chromosome<T> | Chromosome_Real

---

Member Function Documentation

void Chromosome_Binary::fromDoubleVector

(

vector< double > &

phenotype

)

[virtual]

Convert a vector of double to a binary chromosome.

Parameters:

phenotype

The input phenotype.

For binary-encoded chromosome, we discretize the range [upperBound, lowerBound] to 2^n steps where n is the number of bits allocated for one dimension.

Remarks:

Be careful of precision loss.

See also:

Chromosome_Binary::toDoubleVector

Reimplemented from Chromosome< bool >.

vector< double > Chromosome_Binary::toDoubleVector

(

)

[virtual]

Decode a binary string into a vector of double values.

Returns:

The decoded vector of doubles.

Convert the binary string to decimal, then scale it back to the range.

Remarks:

Optimized for fast calculation (using bit-shift operators).

See also:

Chromosome_Binary::fromDoubleVector()

Reimplemented from Chromosome< bool >.

virtual Chromosome_Binary* Chromosome_Binary::clone

(

)

[inline, virtual]

Clone function.

Returns:

A "twin" of the current chromosome

Reimplemented from Chromosome< bool >.

---

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

• D:/HUYNQ/Works/Codes/Dolphin/Dolphin/Elements/Chromosome_Binary.h