// graphGroup may differ, but pattern should be the same
Integer o_ggrp=new Integer(aa_original[i].graphGroup+2),n_ggrp=new Integer(aa_new[i].graphGroup+2);
BitSet orig_g=orig_groups.get(o_ggrp),new_g=new_groups.get(n_ggrp);
// graphGroup may differ, but pattern should be the same
Integer o_ggrp=new Integer(aa_original[i].graphGroup+2),n_ggrp=new Integer(aa_new[i].graphGroup+2);
BitSet orig_g=orig_groups.get(o_ggrp),new_g=new_groups.get(n_ggrp);