101 lines
1.7 KiB
C++
101 lines
1.7 KiB
C++
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#include <algorithm>
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#include <sstream>
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#include "VarNode.h"
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#include "GraphicalModel.h"
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using namespace std;
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VarNode::VarNode (const VarNode* v)
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{
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varId_ = v->varId();
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nrStates_ = v->nrStates();
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evidence_ = v->getEvidence();
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index_ = std::numeric_limits<unsigned>::max();
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}
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VarNode::VarNode (VarId varId, unsigned nrStates, int evidence)
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{
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assert (nrStates != 0);
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assert (evidence < (int) nrStates);
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varId_ = varId;
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nrStates_ = nrStates;
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evidence_ = evidence;
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index_ = std::numeric_limits<unsigned>::max();
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}
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bool
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VarNode::isValidState (int stateIndex)
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{
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return stateIndex >= 0 && stateIndex < (int) nrStates_;
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}
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bool
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VarNode::isValidState (const string& stateName)
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{
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States states = GraphicalModel::getVariableInformation (varId_).states;
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return find (states.begin(), states.end(), stateName) != states.end();
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}
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void
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VarNode::setEvidence (int ev)
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{
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assert (ev < (int) nrStates_);
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evidence_ = ev;
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}
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void
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VarNode::setEvidence (const string& ev)
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{
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States states = GraphicalModel::getVariableInformation (varId_).states;
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for (unsigned i = 0; i < states.size(); i++) {
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if (states[i] == ev) {
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evidence_ = i;
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return;
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}
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}
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assert (false);
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}
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string
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VarNode::label (void) const
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{
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if (GraphicalModel::variablesHaveInformation()) {
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return GraphicalModel::getVariableInformation (varId_).label;
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}
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stringstream ss;
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ss << "x" << varId_;
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return ss.str();
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}
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States
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VarNode::states (void) const
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{
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if (GraphicalModel::variablesHaveInformation()) {
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return GraphicalModel::getVariableInformation (varId_).states;
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}
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States states;
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for (unsigned i = 0; i < nrStates_; i++) {
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stringstream ss;
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ss << i ;
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states.push_back (ss.str());
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}
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return states;
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}
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