fe963a36a326225a2cffa11edea52495a972a3fc,ecj/ec/gp/koza/KozaNodeSelector.java,KozaNodeSelector,pickNode,#EvolutionState#number#number#GPIndividual#GPTree#,168
Before Change
nonterminals = tree.child.numNodes(GPNode.NODESEARCH_NONTERMINALS);
if (nonterminals > 0) // there are some nonterminals
{
tree.child.nodeInPosition(s.random[thread].nextInt(nonterminals),
gatherer,
GPNode.NODESEARCH_NONTERMINALS);
return gatherer.node;
}
else // there ARE no nonterminals! It must be the root node
After Change
if (nonterminals==-1) nonterminals = tree.child.numNodes(GPNode.NODESEARCH_NONTERMINALS);
if (nonterminals > 0) // there are some nonterminals
{
return tree.child.nodeInPosition(s.random[thread].nextInt(nonterminals), GPNode.NODESEARCH_NONTERMINALS);
}
else // there ARE no nonterminals! It must be the root node
{