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Added the normal mutation - and the 1/5 mutation

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evomarc 2001-01-16 07:18:45 +00:00
commit 20b70de2a1
2 changed files with 209 additions and 83 deletions
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127
eo/src/es/eoRealOp.h
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@ -41,7 +41,7 @@
\ingroup parameteric
*/
template<class Chrom> class eoUniformMutation: public eoMonOp<Chrom>
template<class EOT> class eoUniformMutation: public eoMonOp<EOT>
{
public:
/**
@ -57,21 +57,21 @@ template<class Chrom> class eoUniformMutation: public eoMonOp<Chrom>
/**
* Do it!
* @param chrom The cromosome undergoing the mutation
* @param _eo The cromosome undergoing the mutation
*/
void operator()(Chrom& chrom)
void operator()(EOT& _eo)
{
bool hasChanged=false;
for (unsigned lieu=0; lieu<chrom.size(); lieu++)
for (unsigned lieu=0; lieu<_eo.size(); lieu++)
{
if (rng.flip(p_change))
{
chrom[lieu] += 2*epsilon*rng.uniform()-epsilon;
_eo[lieu] += 2*epsilon*rng.uniform()-epsilon;
hasChanged = true;
}
}
if (hasChanged)
chrom.invalidate();
_eo.invalidate();
}
private:
@ -85,7 +85,7 @@ private:
\ingroup parameteric
*/
template<class Chrom> class eoDetUniformMutation: public eoMonOp<Chrom>
template<class EOT> class eoDetUniformMutation: public eoMonOp<EOT>
{
public:
/**
@ -101,16 +101,16 @@ template<class Chrom> class eoDetUniformMutation: public eoMonOp<Chrom>
/**
* Do it!
* @param chrom The cromosome undergoing the mutation
* @param _eo The cromosome undergoing the mutation
*/
void operator()(Chrom& chrom)
void operator()(EOT& _eo)
{
chrom.invalidate();
_eo.invalidate();
for (unsigned i=0; i<no; i++)
{
unsigned lieu = rng.random(chrom.size());
unsigned lieu = rng.random(_eo.size());
// actually, we should test that we don't re-modify same variable!
chrom[lieu] += 2*epsilon*rng.uniform()-epsilon;
_eo[lieu] += 2*epsilon*rng.uniform()-epsilon;
}
}
@ -120,45 +120,6 @@ private:
};
template<class Chrom> class eoNormalMutation: public eoMonOp<Chrom>
{
public:
/**
* (Default) Constructor.
* @param _epsilon the range for uniform nutation
* @param _p_change the probability to change a given coordinate
*/
eoNormalMutation(const double& _epsilon, const double& _p_change = 1.0):
epsilon(_epsilon), p_change(_p_change) {}
/// The class name.
string className() const { return "eoNormalMutation"; }
/**
* Do it!
* @param chrom The cromosome undergoing the mutation
*/
void operator()(Chrom& chrom)
{
bool hasChanged=false;
for (unsigned lieu=0; lieu<chrom.size(); lieu++)
{
if (rng.flip(p_change))
{
chrom[lieu] += epsilon*rng.normal();
hasChanged = true;
}
}
if (hasChanged)
chrom.invalidate();
}
private:
double epsilon;
double p_change;
};
// two arithmetical crossovers
/** eoSegmentCrossover --> uniform choice in segment
@ -167,7 +128,7 @@ private:
\ingroup parameteric
*/
template<class Chrom> class eoSegmentCrossover: public eoQuadraticOp<Chrom>
template<class EOT> class eoSegmentCrossover: public eoQuadraticOp<EOT>
{
public:
/**
@ -184,23 +145,23 @@ template<class Chrom> class eoSegmentCrossover: public eoQuadraticOp<Chrom>
/**
* segment crossover - modifies both parents
* @param chrom1 The first parent
* @param chrom2 The first parent
* @param _eo1 The first parent
* @param _eo2 The first parent
*/
void operator()(Chrom& chrom1, Chrom& chrom2)
void operator()(EOT& _eo1, EOT& _eo2)
{
unsigned i;
double r1, r2, fact;
fact = rng.uniform(range); // in [0,range)
for (i=0; i<chrom1.size(); i++)
for (i=0; i<_eo1.size(); i++)
{
r1=chrom1[i];
r2=chrom2[i];
chrom1[i] = fact * r1 + (1-fact) * r2;
chrom2[i] = (1-fact) * r1 + fact * r2;
r1=_eo1[i];
r2=_eo2[i];
_eo1[i] = fact * r1 + (1-fact) * r2;
_eo2[i] = (1-fact) * r1 + fact * r2;
}
chrom1.invalidate(); // shoudl test if fact was 0 or 1 :-)))
chrom2.invalidate();
_eo1.invalidate(); // shoudl test if fact was 0 or 1 :-)))
_eo2.invalidate();
}
protected:
@ -214,7 +175,7 @@ protected:
\ingroup parameteric
*/
template<class Chrom> class eoArithmeticCrossover: public eoQuadraticOp<Chrom>
template<class EOT> class eoArithmeticCrossover: public eoQuadraticOp<EOT>
{
public:
/**
@ -231,20 +192,20 @@ template<class Chrom> class eoArithmeticCrossover: public eoQuadraticOp<Chrom>
/**
* arithmetical crossover - modifies both parents
* @param chrom1 The first parent
* @param chrom2 The first parent
* @param _eo1 The first parent
* @param _eo2 The first parent
*/
void operator()(Chrom& chrom1, Chrom& chrom2)
void operator()(EOT& _eo1, EOT& _eo2)
{
unsigned i;
double r1, r2, fact;
for (i=0; i<chrom1.size(); i++)
for (i=0; i<_eo1.size(); i++)
{
r1=chrom1[i];
r2=chrom2[i];
r1=_eo1[i];
r2=_eo2[i];
fact = rng.uniform(range); // in [0,range)
chrom1[i] = fact * r1 + (1-fact) * r2;
chrom2[i] = (1-fact) * r1 + fact * r2;
_eo1[i] = fact * r1 + (1-fact) * r2;
_eo2[i] = (1-fact) * r1 + fact * r2;
}
}
@ -259,7 +220,7 @@ protected:
\ingroup parameteric
*/
template<class Chrom> class eoRealUxOver: public eoQuadraticOp<Chrom>
template<class EOT> class eoRealUxOver: public eoQuadraticOp<EOT>
{
public:
/**
@ -277,30 +238,30 @@ template<class Chrom> class eoRealUxOver: public eoQuadraticOp<Chrom>
/**
* Uniform crossover for real vectors
* @param chrom1 The first parent
* @param chrom2 The second parent
* @param _eo1 The first parent
* @param _eo2 The second parent
* @runtime_error if sizes don't match
*/
void operator()(Chrom& chrom1, Chrom& chrom2)
void operator()(EOT& _eo1, EOT& _eo2)
{
if ( chrom1.size() != chrom2.size())
if ( _eo1.size() != _eo2.size())
runtime_error("UxOver --> chromosomes sizes don't match" );
bool changed = false;
for (unsigned int i=0; i<chrom1.size(); i++)
for (unsigned int i=0; i<_eo1.size(); i++)
{
if (rng.flip(preference))
if (chrom1[i] == chrom2[i])
if (_eo1[i] == _eo2[i])
{
double tmp = chrom1[i];
chrom1[i]=chrom2[i];
chrom2[i] = tmp;
double tmp = _eo1[i];
_eo1[i]=_eo2[i];
_eo2[i] = tmp;
changed = true;
}
}
if (changed)
{
chrom1.invalidate();
chrom2.invalidate();
_eo1.invalidate();
_eo2.invalidate();
}
}
private: