if (getFillWithMissing()) {
if (!getFillWithMissing()) {
  public String [] getOptions() {    String [] options = new String [6];    int current = 0;    if (!getAttributeIndices().equals("")) {      options[current++] = "-R"; options[current++] = getAttributeIndices();    }    if (getInvertSelection()) {      options[current++] = "-V";    }    options[current++] = "-I"; options[current++] = "" + getInstanceRange();    if (getFillWithMissing()) {      options[current++] = "-M";    }    while (current < options.length) {      options[current++] = "";    }    return options;  }