gtsam/inference/BayesNet-inl.h

123 lines
4.2 KiB
C++

/* ----------------------------------------------------------------------------
* GTSAM Copyright 2010, Georgia Tech Research Corporation,
* Atlanta, Georgia 30332-0415
* All Rights Reserved
* Authors: Frank Dellaert, et al. (see THANKS for the full author list)
* See LICENSE for the license information
* -------------------------------------------------------------------------- */
/**
* @file BayesNet-inl.h
* @brief Bayes net template definitions
* @author Frank Dellaert
*/
#pragma once
#include <gtsam/inference/BayesNet.h>
#include <iostream>
#include <fstream>
#include <boost/foreach.hpp>
#include <boost/tuple/tuple.hpp>
#include <boost/format.hpp>
#include <boost/lambda/bind.hpp>
#include <boost/lambda/lambda.hpp>
#include <boost/assign/std/vector.hpp> // for +=
using namespace boost::assign;
using namespace std;
namespace gtsam {
/* ************************************************************************* */
template<class CONDITIONAL>
void BayesNet<CONDITIONAL>::print(const string& s) const {
cout << s << ":\n";
BOOST_REVERSE_FOREACH(sharedConditional conditional,conditionals_)
conditional->print((boost::format("Node[%1%]") % conditional->key()).str());
}
/* ************************************************************************* */
template<class CONDITIONAL>
bool BayesNet<CONDITIONAL>::equals(const BayesNet& cbn, double tol) const {
if(size() != cbn.size()) return false;
return equal(conditionals_.begin(),conditionals_.end(),cbn.conditionals_.begin(),equals_star<CONDITIONAL>(tol));
}
/* ************************************************************************* */
template<class CONDITIONAL>
void BayesNet<CONDITIONAL>::permuteWithInverse(const Permutation& inversePermutation) {
BOOST_FOREACH(sharedConditional conditional, conditionals_) {
conditional->permuteWithInverse(inversePermutation);
}
}
/* ************************************************************************* */
template<class CONDITIONAL>
bool BayesNet<CONDITIONAL>::permuteSeparatorWithInverse(const Permutation& inversePermutation) {
bool separatorChanged = false;
BOOST_FOREACH(sharedConditional conditional, conditionals_) {
if(conditional->permuteSeparatorWithInverse(inversePermutation))
separatorChanged = true;
}
return separatorChanged;
}
/* ************************************************************************* */
template<class CONDITIONAL>
void BayesNet<CONDITIONAL>::push_back(const BayesNet<CONDITIONAL> bn) {
BOOST_FOREACH(sharedConditional conditional,bn.conditionals_)
push_back(conditional);
}
/* ************************************************************************* */
template<class CONDITIONAL>
void BayesNet<CONDITIONAL>::push_front(const BayesNet<CONDITIONAL> bn) {
BOOST_FOREACH(sharedConditional conditional,bn.conditionals_)
push_front(conditional);
}
/* ************************************************************************* */
template<class CONDITIONAL>
list<Index> BayesNet<CONDITIONAL>::ordering() const {
list<Index> ord;
BOOST_FOREACH(sharedConditional conditional,conditionals_)
ord.push_back(conditional->key());
return ord;
}
/* ************************************************************************* */
template<class CONDITIONAL>
void BayesNet<CONDITIONAL>::saveGraph(const std::string &s) const {
ofstream of(s.c_str());
of<< "digraph G{\n";
BOOST_FOREACH(const_sharedConditional conditional,conditionals_) {
Index child = conditional->key();
BOOST_FOREACH(Index parent, conditional->parents()) {
of << parent << "->" << child << endl;
}
}
of<<"}";
of.close();
}
/* ************************************************************************* */
template<class CONDITIONAL>
typename BayesNet<CONDITIONAL>::sharedConditional
BayesNet<CONDITIONAL>::operator[](Index key) const {
const_iterator it = find_if(conditionals_.begin(), conditionals_.end(), boost::lambda::bind(&CONDITIONAL::key, *boost::lambda::_1) == key);
if (it == conditionals_.end()) throw(invalid_argument((boost::format(
"BayesNet::operator['%1%']: not found") % key).str()));
return *it;
}
/* ************************************************************************* */
} // namespace gtsam