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Added symbolic regression, which tests combined ops as well

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mac 2000-08-18 08:44:22 +00:00
commit 8ae796ab28
14 changed files with 161 additions and 199 deletions
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51
eo/src/gp/eoParseTree.h
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@ -17,19 +17,12 @@ template <class FType, class Node>
class eoParseTree : public EO<FType>, public parse_tree<Node>
{
public :
typedef parse_tree<Node>::subtree Subtree;
eoParseTree(void) {}
eoParseTree(const parse_tree<Node>& tree) : parse_tree<Node>(tree) {}
typedef typename parse_tree<Node>::subtree Type;
eoParseTree(void) : EO<FType>(), parse_tree<Node>() {}
eoParseTree(unsigned _size, eoRnd<Type>& _rnd)
: EO<FType>(), parse_tree<Node>(_rnd())
{
pruneTree(_size);
}
eoParseTree(eoRnd<Type>& _rnd)
: EO<FType>(), parse_tree<Node>(_rnd())
{}
virtual void pruneTree(unsigned _size)
{
if (_size < 1)
@ -37,7 +30,7 @@ public :
if (size() > _size)
{
Type* sub = &operator[](size() - 2); // prune tree
Subtree* sub = &operator[](size() - 2); // prune tree
while (sub->size() > _size)
{
@ -101,7 +94,7 @@ class eoGpDepthInitializer : public eoInit< eoParseTree<FType, Node> >
const vector<Node>& _initializor,
bool _grow = true)
:
eoRnd<EoType::Type>(),
eoInit<EoType>(),
max_depth(_max_depth),
initializor(_initializor),
grow(_grow)
@ -115,7 +108,8 @@ class eoGpDepthInitializer : public eoInit< eoParseTree<FType, Node> >
generate(sequence, max_depth);
_tree = parse_tree<Node>(sequence.begin(), sequence.end());
parse_tree<Node> tmp(sequence.begin(), sequence.end());
_tree.swap(tmp);
}
void generate(list<Node>& sequence, int the_max, int last_terminal = -1)
@ -180,10 +174,10 @@ public:
/// Dtor
virtual ~eoSubtreeXOver () {};
void operator()(eoIndiSelector<EoType>& _source, eoInserter<EoType>& _sink ) const
void operator()(eoIndiSelector<EoType>& _select, eoInserter<EoType>& _insert )
{
EoType eo1 = _source.select();
const EoType& eo2 = _source.select();
EoType eo1 = _select();
const EoType& eo2 = _select();
int i = rng.random(eo1.size());
int j = rng.random(eo2.size());
@ -193,7 +187,7 @@ public:
eo1.pruneTree(max_length);
eo1.invalidate();
_sink.insert(eo1);
_insert(eo1);
}
unsigned max_length;
@ -206,7 +200,7 @@ public:
typedef eoParseTree<FType, Node> EoType;
eoBranchMutation(eoRnd<EoType::Type>& _init, unsigned _max_length)
eoBranchMutation(eoInit<EoType>& _init, unsigned _max_length)
: eoGeneralOp<EoType>(), max_length(_max_length), initializer(_init)
{};
@ -215,25 +209,28 @@ public:
/// Dtor
virtual ~eoBranchMutation() {};
void operator()(eoIndiSelector<EoType>& _source, eoInserter<EoType>& _sink ) const
void operator()(eoIndiSelector<EoType>& _select, eoInserter<EoType>& _insert )
{
EoType eo1 = _source.select();
EoType eo1 = _select();
int i = rng.random(eo1.size());
EoType eo2(eo1[i].size(), initializer); // create random other to cross with
EoType eo2;
initializer(eo2);
eo1[i] = eo2.back(); // insert subtree
int j = rng.random(eo2.size());
eo1[i] = eo2[j]; // insert subtree
eo1.pruneTree(max_length);
eo1.invalidate();
_sink.insert(eo1);
_insert(eo1);
}
private :
unsigned max_length;
eoRnd<EoType::Type>& initializer;
eoInit<EoType>& initializer;
};