private Instances computeInfoGain(Instances instances,double defAcRt,Antd antd){
  Instances data=instances;
  Instances[] splitData=antd.splitData(data,defAcRt,m_Consequent);
  if (splitData != null) {
    return splitData[(int)antd.getAttrValue()];
  }
 else {
    return null;
  }
}

private Instances computeInfoGain ( Instances instances , double defAcRt , Antd antd ) { Instances data = instances ; Instances [ ] splitData = antd . splitData ( data , defAcRt , m_Consequent ) ; if ( splitData != null ) { return splitData [ ( int ) antd . getAttrValue ( ) ] ; } else { return null ; } }
compute the best information gain for the specified antecedent
