@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("Pedigree\n");
if (fields.size() > 0) {
sb.append("fields = " + fields.keySet().toString() + "\n");
}
for (Map.Entry<String, Set<Individual>> elem : this.families.entrySet()) {
sb.append(elem.getKey() + "\n");
for (Individual ind : elem.getValue()) {
sb.append("\t" + ind.toString() + "\n");
}
}
return sb.toString();
}
