public Element save(int index, float rf) throws Exception {
Element e = new Element("GeneModel");
e.setAttribute("Index", String.valueOf(index));
e.setAttribute("Type", "TwoAlleleIncompleteDominance");
e.setAttribute("RfToPrevious", String.valueOf(rf));
e.addContent(t1.save(1));
e.addContent(t2.save(2));
e.addContent(t3.save(3));
return e;
}
