+ "\t(default none)",
+ "\t(default: first-last)",
  public Enumeration listOptions() {    Vector newVector = new Vector(7);    newVector.addElement(new Option(              "\tSpecifies the (maximum) number of bins to divide numeric"	      + " attributes into.\n"	      + "\t(default = 10)",              "B", 1, "-B <num>"));    newVector.addElement(new Option(              "\tUse equal-frequency instead of equal-width discretization.",              "F", 0, "-F"));    newVector.addElement(new Option(              "\tOptimize number of bins using leave-one-out estimate\n"+	      "\tof estimated entropy (for equal-width discretization).",              "O", 0, "-O"));    newVector.addElement(new Option(              "\tSpecifies list of columns to Discretize. First"	      + " and last are valid indexes.\n"	      + "\t(default none)",              "R", 1, "-R <col1,col2-col4,...>"));    newVector.addElement(new Option(              "\tInvert matching sense of column indexes.",              "V", 0, "-V"));    newVector.addElement(new Option(              "\tOutput binary attributes for discretized attributes.",              "D", 0, "-D"));    return newVector.elements();  }