void TTreeNode::removeStoredInfo()
{ distribution = PDistribution();
contingency = PDomainContingency();
examples = PExampleGenerator();
if (branches)
const_PITERATE(TTreeNodeList, bi, branches)
if (*bi)
(*bi)->treeSize();
}
PConditionalProbabilityEstimator TConditionalProbabilityEstimatorConstructor_ByRows::operator()(PContingency frequencies, PDistribution apriori, PExampleGenerator gen, const long &weightID, const int &attrNo) const
{ if (!frequencies)
frequencies = mlnew TContingencyAttrClass(gen, weightID, attrNo);
if (frequencies->varType != TValue::INTVAR)
if (frequencies->outerVariable)
raiseError("attribute '%s' is not discrete", frequencies->outerVariable->get_name().c_str());
else
raiseError("discrete attribute for condition expected");
/* We first try to construct a list of Distributions; if we suceed, we'll return an instance of
TConditionProbabilityEstimator_FromDistribution. If we fail, we'll construct an instance of
TConditionProbabilityEstimator_ByRows. */
// This list stores conditional estimators for the case we fail
PProbabilityEstimatorList cpel = mlnew TProbabilityEstimatorList();
PContingency newcont = mlnew TContingencyAttrClass(frequencies->outerVariable, frequencies->innerVariable);
TDistributionVector::const_iterator fi(frequencies->discrete->begin()), fe(frequencies->discrete->end());
for (int i = 0; fi!=fe; fi++, i++) {
PProbabilityEstimator est = estimatorConstructor->call(*fi, apriori, PExampleGenerator(), 0, attrNo);
cpel->push_back(est);
PDistribution dist = est->call();
if (!dist)
break;
if (i >= newcont->discrete->size())
newcont->discrete->push_back(dist);
else
newcont->discrete->operator[](i) = dist;
}
if (fi==fe)
return mlnew TConditionalProbabilityEstimator_FromDistribution(newcont);
/* We failed at constructing a matrix of probabilites. We'll just complete the list of estimators. */
for (; fi!=fe; fi++)
cpel->push_back(estimatorConstructor->call(*fi, apriori, gen, weightID));
TConditionalProbabilityEstimator_ByRows *cbr = mlnew TConditionalProbabilityEstimator_ByRows();
PConditionalProbabilityEstimator wcbr = cbr;
cbr->estimatorList = cpel;
return wcbr;
}
