private int[] typeCount(ArrayList<TrialWrapper> trials){
		int[] ret = new int[3];
		for(TrialWrapper t:trials){
			String[] a = t.pathA.split(":");
			String[] b = t.pathB.split(":");
			for(String s:a){
				if(s.equals("insert"))ret[0]++;
				if(s.equals("delete"))ret[1]++;
				if(s.equals("reverse"))ret[2]++;
			}
			for(String s:b){
				if(s.equals("insert"))ret[0]++;
				if(s.equals("delete"))ret[1]++;
				if(s.equals("reverse"))ret[2]++;
			}
		}//for each trial in trials
		return ret;
	}