m_displayRules = Utils.getFlag('R',options);
  public void setOptions(String[] options) throws Exception  {    String optionString;    resetOptions();    optionString = Utils.getOption('X',options);    if (optionString.length() != 0)    {      m_CVFolds = Integer.parseInt(optionString);    }    optionString = Utils.getOption('S',options);    if (optionString.length() != 0)    {      m_maxStale = Integer.parseInt(optionString);    }    m_useIBk = Utils.getFlag('I',options);    // m_displayRules = Utils.getFlag('R',options);  }