/*!
* \brief Invoke GP tree to execute as ADF.
* \param outResult Result of GP tree invocation
* \param ioTree Tree to invoke.
* \param ioContext Evolutionary context.
*/
void GP::Module::invoke(GP::Datum& outResult, GP::Tree::Handle ioTree, GP::Context& ioContext)
{
Beagle_StackTraceBeginM();
GP::Tree::Handle lOldGenotypeHandle = ioContext.getGenotypeHandle();
unsigned int lOldGenotypeIndex = ioContext.getGenotypeIndex();
ioContext.setGenotypeHandle(ioTree);
ioContext.setGenotypeIndex(mIndex);
ioContext.incrementNodesExecuted();
ioContext.pushCallStack(0);
Beagle_LogVerboseM(
ioContext.getSystem().getLogger(),
"EMA", "Beagle::GP::Module",
std::string("Interpreting the ")+uint2ordinal(mIndex+1)+std::string(" module")
);
Beagle_LogObjectDebugM(
ioContext.getSystem().getLogger(),
"EMA", "Beagle::GP::Module",
*ioTree
);
(*ioTree)[0].mPrimitive->execute(outResult, ioContext);
ioContext.popCallStack();
ioContext.checkExecutionTime();
ioContext.setGenotypeHandle(lOldGenotypeHandle);
ioContext.setGenotypeIndex(lOldGenotypeIndex);
Beagle_StackTraceEndM("void GP::Module::invoke(GP::Datum& outResult, GP::Tree::Handle ioTree, GP::Context& ioContext)");
}
/*!
* \brief Initialize a tree.
* \param outTree Tree to initialize.
* \param inMinDepth Minimum depth of to make tree.
* \param inMaxDepth Maximum depth of to make tree.
* \param ioContext Evolution context.
* \return Size of newly initialized tree.
*/
unsigned int GP::InitGrowOp::initTree(GP::Tree& outTree,
unsigned int inMinDepth,
unsigned int inMaxDepth,
GP::Context& ioContext) const
{
Beagle_StackTraceBeginM();
if (mKozaGrow->getWrappedValue()) {
Beagle_LogVerboseM(
ioContext.getSystem().getLogger(),
"initialization", "Beagle::GP::InitGrowConstrainedOp",
"Setting the minimum depth to 2 (as per 'gp.init.kozagrow')"
);
inMinDepth=2;
}
Beagle_AssertM(inMaxDepth >= inMinDepth);
Beagle_AssertM(inMinDepth>0);
Beagle_LogVerboseM(
ioContext.getSystem().getLogger(),
"initialization", "Beagle::GP::InitGrowOp",
std::string("Using the \'grow\' method (with maximum depth ")+uint2str(inMaxDepth)+
std::string(" and minimum depth ")+uint2str(inMinDepth)+std::string(") to initialize the ")+
uint2ordinal(ioContext.getGenotypeIndex()+1)+std::string(" tree")
);
return initSubTreeGrow(outTree, inMinDepth, inMaxDepth, ioContext);
Beagle_StackTraceEndM("unsigned int GP::InitGrowOp::initTree(GP::Tree &outTree, unsigned int inMinDepth, unsigned int inMaxDepth, GP::Context& ioContext) const");
}
/*!
* \brief Generate a new ADF primitive from the given specifications.
* \param inIndex Tree index for which the primitive is created.
* \param inName Name of the primitive generated.
* \param inArgsName Name of the arguments associated to the invoker created.
* \param ioContext Evolutionary context.
*/
GP::Invoker::Handle GP::ADF::generateInvoker(unsigned int inIndex,
std::string inName,
std::string inArgsName,
GP::Context& ioContext) const
{
Beagle_StackTraceBeginM();
if(inIndex == UINT_MAX) {
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
"primitive selection","Beagle::GP::ADF::generateInvoker",
"Generated ADF with UINT_MAX"
);
return new GP::ADF(UINT_MAX, UINT_MAX, inName, inArgsName);
} else {
GP::Tree::Handle lTree = ioContext.getIndividual()[inIndex];
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
"primitive selection","Beagle::GP::ADF::generateInvoker",
std::string("Generated ADF with index ")+uint2str(inIndex)+" ("+uint2str(lTree->getNumberArguments())+" args)"
);
return new GP::ADF(inIndex, lTree->getNumberArguments(), inName, inArgsName);
}
Beagle_StackTraceEndM("GP::Invoker::Handle GP::ADF::generateInvoker(unsigned int inIndex, string inName, string inArgsName, GP::Context& ioContext) const");
}
/*!
* \brief Evaluate the individual fitness for the spambase problem.
* \param inIndividual Individual to evaluate.
* \param ioContext Evolutionary context.
* \return Handle to the fitness measure,
*/
Fitness::Handle SpambaseEvalOp::evaluate(GP::Individual& inIndividual, GP::Context& ioContext)
{
// Get reference to data set
DataSetClassification::Handle lDataSet =
castHandleT<DataSetClassification>(ioContext.getSystem().getComponent("DataSet"));
if(lDataSet == NULL) {
throw Beagle_RunTimeExceptionM("Data set is not present in the system, could not proceed further!");
}
// Generate indices used as data subset for fitness evaluation
std::vector<unsigned int> lSubSet(lDataSet->size());
for(unsigned int i=0; i<lSubSet.size(); ++i) lSubSet[i] = i;
std::random_shuffle(lSubSet.begin(), lSubSet.end(),
ioContext.getSystem().getRandomizer());
if(Spambase_TestSize < lSubSet.size()) {
lSubSet.resize(Spambase_TestSize);
}
// Evaluate sampled test cases
unsigned int lCorrectCount = 0;
for(unsigned int i=0; i<Spambase_TestSize; ++i) {
const bool lPositiveID = ((*lDataSet)[lSubSet[i]].first == 1);
const Beagle::Vector& lData = (*lDataSet)[lSubSet[i]].second;
for(unsigned int j=0; j<lData.size(); ++j) {
std::ostringstream lOSS;
lOSS << "IN" << j;
setValue(lOSS.str(), Double(lData[j]), ioContext);
}
Bool lResult;
inIndividual.run(lResult, ioContext);
if(lResult.getWrappedValue() == lPositiveID) ++lCorrectCount;
}
double lFitness = double(lCorrectCount) / Spambase_TestSize;
return new EC::FitnessSimple(lFitness);
}
/*!
* \brief Validate the GP individual.
* \param ioContext Evolutionary context.
* \return True if the GP individual is valid, false if not.
*/
bool GP::Individual::validate(GP::Context& ioContext)
{
Beagle_StackTraceBeginM();
bool lResult = true;
Beagle_LogDetailedM(
ioContext.getSystem().getLogger(),
std::string("Validating ")+uint2ordinal(ioContext.getIndividualIndex()+1)+
std::string(" individual")
);
// Store original values.
GP::Tree::Handle lOldTreeHandle = ioContext.getGenotypeHandle();
unsigned int lOldTreeIndex = ioContext.getGenotypeIndex();
// Loop through each of the trees in the individual
for (unsigned int i=0; i<size(); i++) {
GP::Tree::Handle lTree = (*this)[i];
if (lTree == NULL) {
Beagle_LogVerboseM(
ioContext.getSystem().getLogger(),
std::string("Skipping ")+uint2ordinal(i+1)+std::string(" tree because it's NULL-valued")
);
continue;
}
Beagle_LogVerboseM(
ioContext.getSystem().getLogger(),
std::string("Validating ")+uint2ordinal(i+1)+std::string(" tree")
);
// Store the new values
ioContext.setGenotypeHandle(lTree);
ioContext.setGenotypeIndex(i);
lTree->setContextToNode(0, ioContext);
if(!lTree->validateSubTree(0, ioContext)) {
Beagle_LogVerboseM(
ioContext.getSystem().getLogger(),
std::string("Validation of ")+uint2ordinal(i+1)+std::string(" tree failed.")
);
lResult = false;
break;
}
}
if(lResult) {
Beagle_LogVerboseM(
ioContext.getSystem().getLogger(),
std::string("Individual passed validation testing.")
);
}
// Restore the original values.
ioContext.setGenotypeHandle(lOldTreeHandle);
ioContext.setGenotypeIndex(lOldTreeIndex);
return lResult;
Beagle_StackTraceEndM();
}
/*!
* \brief Set the value of the named GP primitive of the primitive sets.
* \param inName Name of the variable to set.
* \param inValue Value of the primitive.
* \param ioContext Context of the evaluation.
* \throw Beagle::RunTimeException If the named primitive is not found in any sets.
*/
void Coev::GPEvaluationOp::setValue(std::string inName,
const Object& inValue,
GP::Context& ioContext) const
{
Beagle_StackTraceBeginM();
GP::PrimitiveSuperSet::Handle lSuperSet =
castHandleT<GP::PrimitiveSuperSet>(ioContext.getSystem().getComponent("GP-PrimitiveSuperSet"));
if(lSuperSet == NULL) {
throw Beagle_RunTimeExceptionM("There should be a GP::PrimitiveSuperSet component in the system");
}
bool lValueFound = false;
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
std::string("Setting the primitives named '")+inName+
std::string("' to the value: ")+inValue.serialize()
);
for(unsigned int i=0; i<lSuperSet->size(); i++) {
GP::Primitive::Handle lPrimitive = (*lSuperSet)[i]->getPrimitiveByName(inName);
if(!lPrimitive) continue;
lValueFound = true;
lPrimitive->setValue(inValue);
}
if(lValueFound == false) {
std::string lMessage = "The primitive named '";
lMessage += inName;
lMessage += "' was not found in any ";
lMessage += "of the primitive sets. Maybe the primitive was not properly inserted ";
lMessage += "or the name is mispelled.";
throw Beagle_RunTimeExceptionM(lMessage);
}
Beagle_StackTraceEndM();
}
/*!
* \brief Generate a new random ephemeral Double constant between [-1,1].
* \param inName Name of the constant.
* \param ioContext Context to use to generate the value.
* \return Handle to the ephemeral Double constant generated.
*/
GP::Primitive::Handle EphemeralDoubleWide::generate(Beagle::string inName, GP::Context& ioContext)
{
Beagle_StackTraceBeginM();
double factor = ioContext.getSystem().getRandomizer().rollUniform(-1.,1.);
double exp = ioContext.getSystem().getRandomizer().rollUniform(-4.,3.);
Double::Handle lValue = new Double(factor*pow(10, exp));
return new EphemeralDoubleWide(lValue, inName);
Beagle_StackTraceEndM("GP::Primitive::Handle SinsGP::EphemeralDoubleWide::generate(string inName, GP::Context& ioContext)");
}
/*!
* \brief Interpret the GP individual.
* \param outResult Datum containing the result of the interpretation.
* \param ioContext GP evolutionary context.
* \throw Beagle::ObjectException When individual or tree are empty.
* \throw Beagle::AssertException When context is not correctly set.
* \throw Beagle::GP::MaxNodesExecutionException If number of nodes execution is more than allowed.
* \throw Beagle::GP::MaxTimeExecutionException If elapsed execution time is more than allowed.
*/
void GP::Individual::run(GP::Datum& outResult, GP::Context& ioContext)
{
Beagle_StackTraceBeginM();
if(&ioContext.getIndividual() != this) {
std::ostringstream lOSS;
lOSS << "In GP::Individual::run(): For the given context, ";
lOSS << "getIndividual() did not return the same individual as was passed to this (run) ";
lOSS << "method. Consider setting the context's individual to be the same by using the ";
lOSS << "method Context::setIndividualHandle().";
throw Beagle_RunTimeExceptionM(lOSS.str());
}
if(empty()) throw Beagle_ObjectExceptionM("Could not interpret, individual has no trees!");
if((*this)[0]->empty()) throw Beagle_ObjectExceptionM("Could not interpret, 1st tree is empty!");
Tree::Handle lOldTreeHandle = ioContext.getGenotypeHandle();
unsigned int lOldTreeIndex = ioContext.getGenotypeIndex();
ioContext.setGenotypeIndex(0);
ioContext.setGenotypeHandle((*this)[0]);
Beagle_LogVerboseM(
ioContext.getSystem().getLogger(),
std::string("Running the ")+uint2ordinal(ioContext.getIndividualIndex()+1)+
std::string(" individual")
);
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
std::string("The individual is: ")
);
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
(*this)
);
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
std::string("Executing the first tree root node '")+
(*(*this)[0])[0].mPrimitive->getName()+"'"
);
ioContext.setNodesExecutionCount(0);
ioContext.incrementNodesExecuted();
ioContext.getExecutionTimer().reset();
ioContext.pushCallStack(0);
(*(*this)[0])[0].mPrimitive->execute(outResult, ioContext);
ioContext.popCallStack();
ioContext.checkExecutionTime();
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
std::string("Result of executing the ")+uint2ordinal(ioContext.getIndividualIndex()+1)+
std::string(" individual: ")+outResult.serialize()
);
ioContext.setGenotypeIndex(lOldTreeIndex);
ioContext.setGenotypeHandle(lOldTreeHandle);
Beagle_StackTraceEndM();
}
/*!
* \brief Execute argument primitive.
* \param outResult Result containing value of argument.
* \param ioContext Evolutionary context.
*/
void GP::Argument::execute(GP::Datum& outResult, GP::Context& ioContext)
{
Beagle_StackTraceBeginM();
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
"evaluation", "Beagle::GP::Argument",
std::string("Executing the ")+uint2ordinal(mIndex+1)+" argument"
);
switch (mSharedData->mEvalMode) {
case ePreCompute:
// The result of evaluating the argument has already been calculated.
Beagle_AssertM(mIndex < mSharedData->mCaches.back()->size());
mSharedData->mTypeAllocator->copy(outResult, *(*mSharedData->mCaches.back())[mIndex]);
break;
case eJustInTime:
// Evaluate the argument because we're not caching them.
forceEvaluation(outResult, ioContext);
break;
case eCaching:
// Check first if the argument has been evaluated (i.e. is it in the cache?)
// If it has been evaluated then get it from the cache; otherwise evaluate it.
Beagle_AssertM(mIndex < mSharedData->mCaches.back()->size());
if((*mSharedData->mCaches.back())[mIndex]!=NULL) {
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
"evaluation", "Beagle::GP::Argument",
"Getting result from the cache"
);
mSharedData->mTypeAllocator->copy(outResult, *(*mSharedData->mCaches.back())[mIndex]);
} else {
Object::Bag::Handle lCurrentCache = mSharedData->mCaches.back();
mSharedData->mCaches.pop_back();
forceEvaluation(outResult, ioContext);
mSharedData->mCaches.push_back(lCurrentCache);
(*lCurrentCache)[mIndex] = mSharedData->mTypeAllocator->clone(outResult);
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
"evaluation", "Beagle::GP::Argument",
"Result added to cache"
);
}
break;
default:
throw Beagle_InternalExceptionM(std::string("Undefined evaluation mode (")+
uint2str(mSharedData->mEvalMode)+std::string(") for arguments!"));
}
Beagle_StackTraceEndM();
}
/*!
* \brief Initialize a constrained GP tree of a specified depth using the "full" approach.
* \param outTree Tree to initialize.
* \param inMinDepth Minimum depth to make tree.
* \param inMaxDepth Maximum depth to make tree.
* \param ioContext Evolutionary context.
*/
unsigned int GP::InitFullConstrainedOp::initTree(GP::Tree& outTree,
unsigned int inMinDepth,
unsigned int inMaxDepth,
GP::Context &ioContext) const
{
Beagle_StackTraceBeginM();
const unsigned int lDepth = inMaxDepth;
Beagle_AssertM(lDepth>0);
Beagle_LogVerboseM(
ioContext.getSystem().getLogger(),
"initialization", "Beagle::GP::InitFullConstrainedOp",
std::string("Using the constrained \'full\' method (with depth ")+
uint2str(lDepth)+std::string(") to initialize the ")+
uint2ordinal(ioContext.getGenotypeIndex()+1)+std::string(" tree.")
);
unsigned int lSubTreeSize;
do {
lSubTreeSize = initConstrainedSubTreeFull(outTree, lDepth, ioContext);
} while (lSubTreeSize == 0);
return lSubTreeSize;
Beagle_StackTraceEndM("unsigned int GP::InitFullConstrainedOp::initTree(GP::Tree& outTree, unsigned int inMinDepth, unsigned int inMaxDepth, GP::Context &ioContext) const");
}
/*!
* \brief Return indices of the trees that can be invoked by the module.
* \param outCandidates Indices of tree that can be selected as invokable in the actual context.
* \param inNumberArguments Number of arguments for which the selection is desired.
* \param ioContext Evolutionary context.
*/
void GP::Module::getCandidatesToInvoke(std::vector<unsigned int>& outCandidates,
unsigned int inNumberArguments,
GP::Context& ioContext) const
{
Beagle_StackTraceBeginM();
outCandidates.clear();
for(unsigned int i=0; i<ioContext.getCallStackSize(); ++i) {
if(ioContext.getGenotype()[ioContext.getCallStackElement(i)].mPrimitive->getName() == getName())
return;
}
Component::Handle lComponent = ioContext.getSystem().getComponent("ModuleVector");
GP::ModuleVectorComponent::Handle lModVector =
castHandleT<GP::ModuleVectorComponent>(lComponent);
if(lModVector==NULL) {
throw Beagle_RunTimeExceptionM(std::string("GP system is not configured with a module vector. ")+
std::string("Consider adding a GP::ModuleVectorComponent object to the system."));
}
for(unsigned int i=0; i<lModVector->size(); ++i) {
if((*lModVector)[i]==NULL) continue;
const unsigned int lNbArgsTree = (*lModVector)[i]->getNumberArguments();
if(inNumberArguments == GP::Primitive::eAny) outCandidates.push_back(i);
else if((inNumberArguments==GP::Primitive::eBranch) && (lNbArgsTree>0))
outCandidates.push_back(i);
else if(inNumberArguments == lNbArgsTree) outCandidates.push_back(i);
}
Beagle_StackTraceEndM();
}
/*!
* \brief Randomly select a node from a specific tree in the individual.
* \return Randomly selected tree
*
* Each node has an equal probability of being selected.
*/
unsigned int GP::Individual::chooseRandomNode(unsigned int inTree, GP::Context& ioContext) const
{
Beagle_StackTraceBeginM();
Beagle_AssertM(operator[](inTree)->size()!=0);
return ioContext.getSystem().getRandomizer().rollInteger(0, operator[](inTree)->size()-1);
Beagle_StackTraceEndM();
}
/*!
* \brief Randomly select a node that takes arguments from a specific
* tree in the individual.
* \return Randomly selected tree
*/
unsigned int GP::Individual::chooseRandomNodeWithArgs(unsigned int inTree,
GP::Context& ioContext) const
{
Beagle_StackTraceBeginM();
const GP::Tree& lTree = *(operator[](inTree));
unsigned int lSize = lTree.size();
if (lSize < 2) {
std::ostringstream lOSS;
lOSS << "In GP::Individual::chooseRandomNodeWithArgs(): ";
lOSS << "Could not choose a node with arguments because the specified tree has fewer ";
lOSS << "than two (" << lSize << ") nodes, hence there are no such nodes";
lOSS << " in the tree. This occurred while calling chooseRandomNodeWithArgs() with an ";
lOSS << "inTree value of " << inTree;
throw Beagle_RunTimeExceptionM(lOSS.str());
}
// Loop through the tree adding appropriate nodes into the roulette
RouletteT<unsigned int> lRoulette;
for (unsigned int i=0; i<lSize; i++) {
if(lTree[i].mSubTreeSize > 1) lRoulette.insert(i);
}
// Select node with roulette
Beagle_AssertM(!lRoulette.empty());
return lRoulette.select(ioContext.getSystem().getRandomizer());
Beagle_StackTraceEndM();
}
/*!
* \brief Return a reference to the actual argument.
* \param inNumberArguments
* \param ioContext Evolutionary context.
* \return Handle to argument.
*/
GP::Primitive::Handle GP::Argument::giveReference(unsigned int inNumberArguments, GP::Context& ioContext)
{
Beagle_StackTraceBeginM();
if(mIndex!=eGenerator) return this;
const unsigned int lTreeNbArgs = ioContext.getGenotype().getNumberArguments();
Beagle_AssertM(lTreeNbArgs > 0);
const unsigned int lGenIndex =
ioContext.getSystem().getRandomizer().rollInteger(0,(lTreeNbArgs-1));
return generateArgument(lGenIndex);
Beagle_StackTraceEndM();
}
/*!
* \brief Initialize a tree.
* \param outTree Tree to initialize.
* \param inMinDepth Minimum depth to make tree.
* \param inMaxDepth Maximum depth to make tree.
* \param ioContext Evolution context.
* \return Size of newly initialized tree.
*/
unsigned int GP::InitHalfOp::initTree(GP::Tree &outTree,
unsigned int inMinDepth,
unsigned int inMaxDepth,
GP::Context &ioContext) const
{
Beagle_StackTraceBeginM();
if(ioContext.getSystem().getRandomizer().rollUniform(0.0, 1.0) < 0.5)
return mInitFullOp.initTree(outTree, inMinDepth, inMaxDepth, ioContext);
return mInitGrowOp.initTree(outTree, inMinDepth, inMaxDepth, ioContext);
Beagle_StackTraceEndM();
}
/*!
* \brief Randomly select a tree from the individual.
* \return Randomly selected tree
*
* The selection is biased towards trees with a greater number of nodes
* (i.e. each node has an equal probability of being selected).
*/
unsigned int GP::Individual::chooseRandomTree(GP::Context& ioContext) const
{
Beagle_StackTraceBeginM();
unsigned int lChosenNode = ioContext.getSystem().getRandomizer().rollInteger(0, getTotalNodes()-1);
unsigned int lChosenTree = 0;
for(; (lChosenTree+1)<size(); lChosenTree++) {
if(lChosenNode < (*this)[lChosenTree]->size()) break;
else lChosenNode -= (*this)[lChosenTree]->size();
}
return lChosenTree;
Beagle_StackTraceEndM();
}
/*!
* \brief Push execution context to prepare the execution of the argument.
* \param inNumberArguments Number of arguments of called tree.
* \param ioContext Evolutionary context.
*/
void GP::Argument::pushExecutionContext(unsigned int inNumberArguments, GP::Context& ioContext)
{
Beagle_StackTraceBeginM();
switch(mSharedData->mEvalMode) {
case eCaching: {
Object::Bag::Handle lNewCache = new Object::Bag(inNumberArguments, NULL);
mSharedData->mCaches.push_back(lNewCache);
Context::Alloc::Handle lContextAlloc =
castHandleT<Context::Alloc>(ioContext.getSystem().getFactory().getConceptAllocator("Context"));
GP::Context::Handle lNewEvalContext =
castHandleT<GP::Context>(lContextAlloc->clone(ioContext));
mSharedData->mEvalContext.push_back(lNewEvalContext);
break;
}
case eJustInTime: {
Context::Alloc::Handle lContextAlloc =
castHandleT<Context::Alloc>(ioContext.getSystem().getFactory().getConceptAllocator("Context"));
GP::Context::Handle lNewEvalContext =
castHandleT<GP::Context>(lContextAlloc->clone(ioContext));
mSharedData->mEvalContext.push_back(lNewEvalContext);
break;
}
case ePreCompute: {
Object::Bag::Handle lNewCache = new Object::Bag(inNumberArguments, NULL);
lNewCache->resize(inNumberArguments);
for(unsigned int i=0; i<inNumberArguments; ++i) {
Object::Handle lArgI = mSharedData->mTypeAllocator->allocate();
getArgument(i, *lArgI, ioContext);
(*lNewCache)[i] = lArgI;
}
mSharedData->mCaches.push_back(lNewCache);
}
default: {
throw Beagle_InternalExceptionM(std::string("Undefined evaluation mode (")+
uint2str(mSharedData->mEvalMode)+std::string(") for the arguments!"));
}
}
Beagle_StackTraceEndM();
}
/*!
* \brief Validate the ADF position in the tree.
* \param ioContext Evolutionary context.
* \return True if the ADF is correctly positioned, false if not.
* \throw Beagle::AssertException If the context is in a bad state.
*/
bool GP::ADF::validate(GP::Context& ioContext) const
{
Beagle_StackTraceBeginM();
if(mIndex <= ioContext.getGenotypeIndex()) {
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
"validation","Beagle::GP::ADF::validate",
std::string("Validation failed because the ADF's index (")+uint2str(mIndex)+
") is less than or equal to the genotype index ("+uint2str(ioContext.getGenotypeIndex())+")"
);
return false;
}
if(mIndex >= ioContext.getIndividual().size()) {
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
"validation","Beagle::GP::ADF::validate",
std::string("Validation failed because the ADF's index (")+uint2str(mIndex)+
") is greater than or equal to the individual's size ("+
uint2str(ioContext.getIndividual().size())+")"
);
return false;
}
if(ioContext.getIndividual()[mIndex]->getNumberArguments() != getNumberArguments()) {
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
"validation","Beagle::GP::ADF::validate",
std::string("Validation failed because the number of arguments for the tree (")+
uint2str(ioContext.getIndividual()[mIndex]->getNumberArguments())+
") differed from the number of arguments for the primitive ("+
uint2str(getNumberArguments())+")"
);
return false;
}
return GP::Primitive::validate(ioContext);
Beagle_StackTraceEndM("bool GP::ADF::validate(GP::Context& ioContext) const");
}
/*!
* \brief Get reference the tree to invoke.
* \param ioContext Evolutionary context.
* \return Handle to the invoked tree.
*/
GP::Tree::Handle GP::Module::getInvokedTree(GP::Context& ioContext) const
{
Beagle_StackTraceBeginM();
Component::Handle lComponent = ioContext.getSystem().getComponent("ModuleVector");
GP::ModuleVectorComponent::Handle lModVector =
castHandleT<GP::ModuleVectorComponent>(lComponent);
if(lModVector==NULL) {
throw Beagle_RunTimeExceptionM(std::string("GP system is not configured with a module vector. ")+
std::string("Consider adding a GP::ModuleVectorComponent object to the system."));
}
Beagle_AssertM(mIndex < lModVector->size());
Beagle_AssertM((*lModVector)[mIndex] != NULL);
return (*lModVector)[mIndex];
Beagle_StackTraceEndM();
}
/*!
* \brief Randomly select a node that takes no argument from a specific
* tree in the individual.
* \return Randomly selected tree
*/
unsigned int GP::Individual::chooseRandomNodeWithoutArgs(unsigned int inTree,
GP::Context& ioContext) const
{
Beagle_StackTraceBeginM();
// Loop through the tree adding appropriate nodes into the roulette
unsigned int lSize = operator[](inTree)->size();
RouletteT<unsigned int> lRoulette;
for (unsigned int i=0; i<lSize; i++) {
if (operator[](inTree)->operator[](i).mSubTreeSize == 1) {
lRoulette.insert(i);
}
}
// Select node with roulette
Beagle_AssertM(!lRoulette.empty());
return lRoulette.select(ioContext.getSystem().getRandomizer());
Beagle_StackTraceEndM();
}
/*!
* \brief Generate a new Module primitive from the given specifications.
* \param inIndex Tree index for which the primitive is created.
* \param inName Name of the primitive generated.
* \param inArgsName Name of the arguments associated to the invoker created.
* \param ioContext Evolutionary context.
*/
GP::Invoker::Handle GP::Module::generateInvoker(unsigned int inIndex,
std::string inName,
std::string inArgsName,
GP::Context& ioContext) const
{
Beagle_StackTraceBeginM();
Component::Handle lComponent = ioContext.getSystem().getComponent("ModuleVector");
GP::ModuleVectorComponent::Handle lModVector =
castHandleT<GP::ModuleVectorComponent>(lComponent);
if(lModVector==NULL) {
throw Beagle_RunTimeExceptionM(std::string("GP system is not configured with a module vector. ")+
std::string("Consider adding a GP::ModuleVectorComponent object to the system."));
}
GP::Tree::Handle lTree = (*lModVector)[inIndex];
Beagle_AssertM(lTree != NULL);
return new GP::Module(inIndex, lTree->getNumberArguments(), inName, inArgsName);
Beagle_StackTraceEndM();
}
/*!
* \brief Validate the module position in the tree.
* \param ioContext Evolutionary context.
* \return True if the module is correctly positioned, false if not.
* \throw Beagle::AssertException If the context is in a bad state.
*/
bool GP::Module::validate(GP::Context& ioContext) const
{
Beagle_StackTraceBeginM();
for(unsigned int i=0; i<ioContext.getCallStackSize(); ++i) {
if(ioContext.getGenotype()[ioContext.getCallStackElement(i)].mPrimitive->getName() == getName())
return false;
}
Component::Handle lComponent = ioContext.getSystem().getComponent("ModuleVector");
GP::ModuleVectorComponent::Handle lModVector =
castHandleT<GP::ModuleVectorComponent>(lComponent);
if(lModVector==NULL) {
throw Beagle_RunTimeExceptionM(std::string("GP system is not configured with a module vector. ")+
std::string("Consider adding a GP::ModuleVectorComponent object to the system."));
}
Beagle_AssertM((*lModVector)[mIndex]!=NULL);
if((*lModVector)[mIndex]->getNumberArguments() != getNumberArguments()) return false;
return GP::Primitive::validate(ioContext);
Beagle_StackTraceEndM();
}
/*!
* \brief Return a reference of the ADF primitive.
* \param inNumberArguments Number of arguments asked for the reference.
* \param ioContext Evolutionary context.
* \return Handle to the reference generated.
*/
GP::Primitive::Handle GP::Invoker::giveReference(unsigned int inNumberArguments,
GP::Context& ioContext)
{
Beagle_StackTraceBeginM();
// If not an invoker, return this directly.
if(mIndex!=eGenerator) return this;
// Generate new invoker.
std::vector<unsigned int> lCandidates;
getCandidatesToInvoke(lCandidates, inNumberArguments, ioContext);
unsigned int lIndex = UINT_MAX;
if(lCandidates.size() > 0) {
lIndex = lCandidates[ioContext.getSystem().getRandomizer().rollInteger(0,lCandidates.size()-1)];
}
Handle lGeneratedInvoker = generateInvoker(lIndex, getName(), mArgsName, ioContext);
// Return newly generated invoker.
return lGeneratedInvoker;
Beagle_StackTraceEndM("GP::Primitive::Handle GP::Invoker::giveReference(unsigned int inNumberArguments, GP::Context& ioContext)");
}
void GP::Argument::forceEvaluation(GP::Datum& outResult, GP::Context& ioContext)
{
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
"evaluation", "Beagle::GP::Argument",
std::string("Evaluating the ")+uint2ordinal(mIndex+1)+" argument"
);
GP::Context::Handle lActualContext = mSharedData->mEvalContext.back();
mSharedData->mEvalContext.pop_back();
lActualContext->setAllowedNodesExecution(ioContext.getAllowedNodesExecution());
lActualContext->setAllowedExecutionTime(ioContext.getAllowedExecutionTime());
lActualContext->setNodesExecutionCount(ioContext.getNodesExecutionCount());
lActualContext->getExecutionTimer() = ioContext.getExecutionTimer();
getArgument(mIndex, outResult, *lActualContext);
ioContext.getExecutionTimer() = lActualContext->getExecutionTimer();
ioContext.setNodesExecutionCount(lActualContext->getNodesExecutionCount());
ioContext.setAllowedExecutionTime(lActualContext->getAllowedExecutionTime());
ioContext.setAllowedNodesExecution(lActualContext->getAllowedNodesExecution());
mSharedData->mEvalContext.push_back(lActualContext);
}
/*!
* \brief Select a node for mating in the given individual, following the constraints penalties.
* \param outSelectTreeIndex Tree index of the selected node.
* \param outSelectNodeIndex Index of the selected node.
* \param inSelectABranch True if node to select must be a branch, false if it must a leaf.
* \param inNodeReturnType Desired return type for the nodes to be selected.
* \param inPrimitSetIndex Primitive set index to which the tree must be associated.
* \param inMaxSubTreeDepth Maximum sub tree depth allowed of the node to be selected.
* \param inMaxSubTreeSize Maximum sub tree size allowed of the node to be selected.
* \param inIndividual Individual to select the node from.
* \param ioContext Evolutionary context.
* \return True if there was node to select, false if no node respected all constraints.
*/
bool STGP::CrossoverConstrainedOp::selectNodeToMateWithType(unsigned int& outSelectTreeIndex,
unsigned int& outSelectNodeIndex,
bool inSelectABranch,
const std::type_info* inNodeReturnType,
unsigned int inPrimitSetIndex,
unsigned int inMaxSubTreeDepth,
unsigned int inMaxSubTreeSize,
GP::Individual& inIndividual,
GP::Context& ioContext) const
{
Beagle_StackTraceBeginM();
RouletteT< std::pair<unsigned int,unsigned int> > lRoulette;
GP::Tree::Handle lOldTreeHandle = ioContext.getGenotypeHandle();
const unsigned int lOldTreeIndex = ioContext.getGenotypeIndex();
ioContext.emptyCallStack();
for(unsigned int i=0; i<inIndividual.size(); ++i) {
if(inIndividual[i]->getPrimitiveSetIndex() != inPrimitSetIndex) continue;
ioContext.setGenotypeHandle(inIndividual[i]);
ioContext.setGenotypeIndex(i);
buildRouletteWithType(lRoulette,
inSelectABranch,
inNodeReturnType,
inMaxSubTreeDepth,
inMaxSubTreeSize,
0,
*inIndividual[i],
ioContext);
}
ioContext.setGenotypeIndex(lOldTreeIndex);
ioContext.setGenotypeHandle(lOldTreeHandle);
if(lRoulette.size() == 0) return false;
std::pair<unsigned int,unsigned int> lSelectedNode =
lRoulette.select(ioContext.getSystem().getRandomizer());
outSelectTreeIndex = lSelectedNode.first;
outSelectNodeIndex = lSelectedNode.second;
return true;
Beagle_StackTraceEndM();
}
/*!
* \brief Evaluate the individual fitness.
* \param inIndividual Individual to evaluate.
* \param ioContext Evolutionary context.
* \return Handle to the fitness measure.
*/
Fitness::Handle SharedLibEvalOp::evaluate(GP::Individual& inIndividual, GP::Context& ioContext)
{
Beagle_StackTraceBeginM();
std::ostringstream lOSS;
lOSS << "Evaluating individual " << ioContext.getIndividualIndex() << ", deme ";
lOSS << ioContext.getDemeIndex() << ", generation " << ioContext.getGeneration();
Beagle_LogDebugM(ioContext.getSystem().getLogger(), "evaluate", "Beagle::GP::SpamebaseEvalOp", lOSS.str());
GP::PrimitiveSuperSet::Handle lPrimitiveSuperSet=
castHandleT<GP::PrimitiveSuperSet>(ioContext.getSystem().getComponent("GP-PrimitiveSuperSet"));
GP::PrimitiveSet::Handle lPrimitiveSet= (*lPrimitiveSuperSet)[0];
// Get a handle on the shared library used for evaluation.
// TODO: Open shared lib only once per generation!
this->mTimer.reset();
if (this->mSharedLibHandle)
{
dlclose(this->mSharedLibHandle);
Beagle_LogDebugM(
ioContext.getSystem().getLogger(), "evaluate", "Beagle::GP::SpamebaseEvalOp",
"Closed previously opened shared lib.");
}
if (!ioContext.getSystem().getRegister().isRegistered("icu.compiler.lib-path"))
{
throw Beagle_RunTimeExceptionM("Parameter icu.compiler.lib-path not found in registry; make sure to apply SharedLibCompilerOp before applying SharedLibEvalOp.");
}
std::string lLibName= castHandleT<String>(ioContext.getSystem().getRegister()["icu.compiler.lib-path"])->getWrappedValue();
this->mSharedLibHandle= dlopen((const char*)lLibName.c_str(), RTLD_LAZY);
if (!this->mSharedLibHandle)
{
throw Beagle_RunTimeExceptionM("Cannot open shared library "+ lLibName+ ": "+ dlerror()+ ".");
}
dlerror();
// Draw a sample from the data set to construct the training set.
this->mTimer.reset();
// Get a handle on D, S, and L.
DataSetBinaryClassification::Handle lDataSet= castHandleT<DataSetBinaryClassification>(ioContext.getSystem().getComponent("DataSet"));
std::vector<unsigned int>* lIndexesPositives= lDataSet->getIndexesPositives();
std::vector<unsigned int>* lIndexesNegatives= lDataSet->getIndexesNegatives();
int lNrSamplesPositive= castHandleT<Int>(ioContext.getSystem().getRegister()["icu.trainingset.size-pos"])->getWrappedValue();
int lNrSamplesNegative= castHandleT<Int>(ioContext.getSystem().getRegister()["icu.trainingset.size-neg"])->getWrappedValue();
// Shuffle both negative and positive indexes.
std::random_shuffle(lIndexesPositives->begin(), lIndexesPositives->end(), ioContext.getSystem().getRandomizer());
std::random_shuffle(lIndexesNegatives->begin(), lIndexesNegatives->end(), ioContext.getSystem().getRandomizer());
// Nr of columns in each row in the dataset.
int lNrColumns= castHandleT<Int>(ioContext.getSystem().getRegister()["icu.dataset.columns"])->getWrappedValue();
double lTimeInit= this->mTimer.getValue();
this->mTimer.reset();
// Evaluate sampled test cases
unsigned int lTruePositives = 0;
unsigned int lTrueNegatives = 0;
unsigned int lFalsePositives= 0;
unsigned int lFalseNegatives= 0;
int (*apply_individual)(float[])= 0;
float lValues[lNrColumns];
std::vector<unsigned int>::iterator lLastIndex= lIndexesPositives->begin()+ lNrSamplesPositive;
// Positives.
for(std::vector<unsigned int>::const_iterator lIndex=lIndexesPositives->begin(); lIndex!=lLastIndex; ++lIndex)
{
const Beagle::Vector& lData = (*lDataSet)[*lIndex].second;
std::ostringstream lFunctionName;
lFunctionName << "apply_individual_";
lFunctionName << ioContext.getGeneration() << "_" << ioContext.getDemeIndex() << "_" << ioContext.getIndividualIndex();
apply_individual= (int(*)(float*))dlsym(this->mSharedLibHandle, lFunctionName.str().c_str());
char* lError= 0;
if ((lError = dlerror()) != NULL) {
throw Beagle_RunTimeExceptionM("Error loading function "+ lFunctionName.str()+ ": "+ lError+ ".");
}
for(unsigned int j=0; j<lData.size(); ++j) {
lValues[j]= Float(lData[j]);
}
bool lResult= apply_individual(lValues);
(lResult == 1) ? lTruePositives++ : lFalseNegatives++;
}
// Negatives.
lLastIndex= lIndexesNegatives->begin()+ lNrSamplesNegative;
for(std::vector<unsigned int>::const_iterator lIndex=lIndexesNegatives->begin(); lIndex!=lLastIndex; ++lIndex)
{
const Beagle::Vector& lData = (*lDataSet)[*lIndex].second;
std::ostringstream lFunctionName;
lFunctionName << "apply_individual_";
lFunctionName << ioContext.getGeneration() << "_" << ioContext.getDemeIndex() << "_" << ioContext.getIndividualIndex();
apply_individual= (int(*)(float*))dlsym(this->mSharedLibHandle, lFunctionName.str().c_str());
char* lError= 0;
if ((lError = dlerror()) != NULL) {
throw Beagle_RunTimeExceptionM("Error loading function "+ lFunctionName.str()+ ": "+ lError+ ".");
}
for(unsigned int j=0; j<lData.size(); ++j) {
lValues[j]= Float(lData[j]);
}
bool lResult= apply_individual(lValues);
(lResult == 0) ? lTrueNegatives++ : lFalsePositives++;
}
double lTimeEvaluate= this->mTimer.getValue();
{
using namespace std;
ostringstream lOSS;
lOSS << "g" << ioContext.getGeneration();
lOSS << " d" << ioContext.getDemeIndex();
lOSS << " i" << ioContext.getIndividualIndex() << ", ";
lOSS << "TP|FP|FN|TN = ";
lOSS.width(7);
lOSS << right << lTruePositives << "|";
lOSS.width(7);
lOSS << right << lFalsePositives << "|";
lOSS.width(7);
lOSS << right << lFalseNegatives << "|";
lOSS.width(7);
lOSS << right << lTrueNegatives;
Beagle_LogDetailedM(ioContext.getSystem().getLogger(), "evaluate", "Beagle::GP::SharedLibEvalOp", lOSS.str());
}
GP::FitnessMCC* fitness= new GP::FitnessMCC(lTruePositives, lFalsePositives, lTrueNegatives, lFalseNegatives);
return fitness;
Beagle_StackTraceEndM("SharedLibEvalOp::evaluate(GP::Individual& inIndividual, GP::Context& ioContext)");
}
/*!
* \brief Expand given module of a GP tree.
* \param inNodeToExpand Index of node to expand in GP tree.
* \param ioTree Tree from which module will be expanded.
* \param ioContext Evolutionary context.
*/
void GP::ModuleExpandOp::expand(unsigned int inNodeToExpand,
GP::Tree& ioTree,
GP::Context& ioContext)
{
Beagle_StackTraceBeginM();
// Log tree before expansion.
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
"Tree before expansion"
);
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
ioTree
);
// Get the module index and reference.
Module::Handle lModuleInstance = castHandleT<Module>(ioTree[inNodeToExpand].mPrimitive);
unsigned int lModuleIndex = lModuleInstance->getIndex();
Beagle_LogVerboseM(
ioContext.getSystem().getLogger(),
std::string("Expanding ")+uint2ordinal(lModuleIndex+1)+
std::string(" module (called from ")+uint2ordinal(inNodeToExpand+1)+
std::string(" node of the tree)")
);
ModuleVectorComponent::Handle lModuleVectorComponent =
castHandleT<ModuleVectorComponent>(ioContext.getSystem().getComponent("ModuleVector"));
if(lModuleVectorComponent==NULL) {
throw Beagle_RunTimeExceptionM(std::string("GP system is not configured with a module vector. ")+
std::string("Consider adding a GP::ModuleVectorComponent object to the system."));
}
Beagle::GP::Tree::Handle lModule = (*lModuleVectorComponent)[lModuleIndex];
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
*lModule
);
// Generate new tree.
const Factory& lFactory = ioContext.getSystem().getFactory();
GP::Tree::Alloc::Handle lTreeAlloc =
castHandleT<GP::Tree::Alloc>(lFactory.getConceptAllocator("Genotype"));
GP::Tree::Handle lNewTree = castHandleT<GP::Tree>(lTreeAlloc->allocate());
std::string lArgName = lModuleInstance->getArgsName();
ioTree.setContextToNode(inNodeToExpand, ioContext);
for(unsigned int i=0; i<lModule->size(); ++i) {
if((*lModule)[i].mPrimitive->getName() != lArgName) {
lNewTree->push_back(GP::Node((*lModule)[i].mPrimitive));
} else {
GP::Argument::Handle lArg = castHandleT<GP::Argument>((*lModule)[i].mPrimitive);
const unsigned int lChildIndex =
ioTree[inNodeToExpand].mPrimitive->getChildrenNodeIndex(lArg->getIndex(), ioContext);
lNewTree->insert(lNewTree->end(), ioTree.begin()+lChildIndex,
ioTree.begin()+lChildIndex+ioTree[lChildIndex].mSubTreeSize);
}
}
ioTree.erase(ioTree.begin()+inNodeToExpand,
ioTree.begin()+inNodeToExpand+ioTree[inNodeToExpand].mSubTreeSize);
ioTree.insert(ioTree.begin()+inNodeToExpand, lNewTree->begin(), lNewTree->end());
ioTree.fixSubTreeSize();
// Log results.
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
"Tree after expansion"
);
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
ioTree
);
Beagle_StackTraceEndM();
}
/*!
* \brief Initialize a GP constrained sub-tree of a specified depth using the "full" approach.
* \param ioTree Tree containing the sub-tree to initialize.
* \param inSubTreeDepth Depth of the sub-tree to initialize.
* \param ioContext Evolutionary context.
* \return Generated sub-tree size.
*/
unsigned int GP::InitFullConstrainedOp::initConstrainedSubTreeFull(GP::Tree& ioTree,
unsigned int inSubTreeDepth,
GP::Context& ioContext) const
{
Beagle_StackTraceBeginM();
Beagle_AssertM(inSubTreeDepth>0);
GP::PrimitiveSet& lPrimitSet = ioTree.getPrimitiveSet(ioContext);
GP::Primitive::Handle lPrimit = NULL;
const unsigned int lNodeIndex = ioTree.size();
for(unsigned int lAttempt=0; lAttempt < mNumberAttempts->getWrappedValue(); ++lAttempt) {
#ifdef BEAGLE_HAVE_RTTI
const std::type_info* lDesiredType = NULL;
if(ioTree.size()==0) lDesiredType = ioTree.getRootType(ioContext);
else {
const unsigned int lParentIndex = ioContext.getCallStackTop();
unsigned int lArgsIndexChild = 0;
for(unsigned int lChildIndex=(lParentIndex+1);
lChildIndex!=lNodeIndex; lChildIndex += ioTree[lChildIndex].mSubTreeSize) {
Beagle_AssertM(lChildIndex <= ioTree.size());
++lArgsIndexChild;
Beagle_AssertM(lArgsIndexChild < ioTree[lParentIndex].mPrimitive->getNumberArguments());
}
lDesiredType = ioTree[lParentIndex].mPrimitive->getArgType(lArgsIndexChild, ioContext);
}
if(inSubTreeDepth == 1) {
lPrimit = lPrimitSet.selectWithType(GP::Primitive::eTerminal, lDesiredType, ioContext);
if(!lPrimit) return 0;
lPrimit = lPrimit->giveReference(GP::Primitive::eTerminal, ioContext);
} else {
lPrimit = lPrimitSet.selectWithType(GP::Primitive::eBranch, lDesiredType, ioContext);
if(!lPrimit) return 0;
lPrimit = lPrimit->giveReference(GP::Primitive::eBranch, ioContext);
}
#else // BEAGLE_HAVE_RTTI
if(inSubTreeDepth == 1) {
lPrimit = lPrimitSet.select(GP::Primitive::eTerminal, ioContext);
if(!lPrimit) {
string lMessage = "There is no leaf (primitive without argument) in the ";
lMessage += uint2ordinal(ioContext.getGenotypeIndex());
lMessage += " primitive set!";
throw Beagle_RunTimeExceptionM(lMessage);
}
lPrimit = lPrimit->giveReference(GP::Primitive::eTerminal, ioContext);
} else {
lPrimit = lPrimitSet.select(GP::Primitive::eBranch, ioContext);
if(!lPrimit) {
string lMessage = "There is no branch (primitive with arguments) in the ";
lMessage += uint2ordinal(ioContext.getGenotypeIndex());
lMessage += " primitive set!";
throw Beagle_RunTimeExceptionM(lMessage);
}
lPrimit = lPrimit->giveReference(GP::Primitive::eBranch, ioContext);
}
#endif // BEAGLE_HAVE_RTTI
ioTree.push_back(GP::Node(lPrimit, 0));
ioContext.pushCallStack(lNodeIndex);
if(lPrimit->validate(ioContext)) {
unsigned int lSubTreeSize = 1;
bool lGoodInit = true;
for(unsigned int i=0; i<lPrimit->getNumberArguments(); i++) {
unsigned int lArgSubTreeSize =
initConstrainedSubTreeFull(ioTree, inSubTreeDepth-1, ioContext);
if(lArgSubTreeSize == 0) {
for(unsigned int j=1; j<lSubTreeSize; j++) ioTree.pop_back();
lGoodInit = false;
break;
}
lSubTreeSize += lArgSubTreeSize;
}
if(lGoodInit) {
ioContext.popCallStack();
ioTree[lNodeIndex].mSubTreeSize = lSubTreeSize;
return lSubTreeSize;
}
} else {
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
"initialization", "Beagle::GP::InitFullConstrainedOp",
"Primitive failed validation testing"
);
}
ioContext.popCallStack();
ioTree.pop_back();
}
Beagle_LogDebugM(
ioContext.getSystem().getLogger(),
"initialization", "Beagle::GP::InitFullConstrainedOp",
"Could not correctly initialize this node; backtracking instead."
);
return 0; // Could not initialize this node correctly, backtracking instead.
Beagle_StackTraceEndM("unsigned int GP::InitFullConstrainedOp::initConstrainedSubTreeFull(GP::Tree& ioTree, unsigned int inSubTreeDepth, GP::Context& ioContext) const");
}
/*!
* \brief Generate a new random ephemeral Double constant in [0,100].
* \param inName Name of the constant.
* \param ioContext Context to use to generate the value.
* \return Handle to the ephemeral Double constant generated.
*/
GP::Primitive::Handle EphemeralPercent::generate(std::string inName, GP::Context& ioContext)
{
Double::Handle lValue = new Double(ioContext.getSystem().getRandomizer().rollUniform(0.,100.));
return new EphemeralPercent(lValue);
}
