- util.setGroups(Groups, nameGroups, s, numGroups, "weighted"); //sets the groups the user wants to analyze
+ if (nameGroups.size() < 2) { m->mothurOut("[ERROR]: You cannot run unifrac.weighted with less than 2 groups, aborting.\n"); delete ct; for (int i = 0; i < T.size(); i++) { delete T[i]; } return 0; }
+ util.setGroups(Groups, nameGroups, s, numGroups, "weighted"); //sets the groups the user wants to analyze