private void initEvaluationInfo() { setFitness(Double.NaN); setEvaluationInfo(new EvaluationInfo(Double.NaN)); getEvaluationInfo().put("G_NODE_NUM", getNumOfNodes()); getEvaluationInfo().put("G_CONST_NUM", getNumOfConstants()); getEvaluationInfo().put("G_MAX_DEPTH", getMaxTreeDepth()); }