public List<Pair> sortList(String title) {
		
		List<Pair> result = null;
		
		if(title.equals("rxOU"))
			result = Pair.generatePairs(rxOU, xOUdf);
		else if(title.equals("rmNGU"))
			result = Pair.generatePairs(rmNGU, mNGUdf);
		else if(title.equals("rxNGU"))
			result = Pair.generatePairs(rxNGU, xNGUdf);
		
		else if(title.equals("rxHeapU"))
			result = Pair.generatePairs(rxHeapU, xHeapUdf);
		else if(title.equals("rxRSS"))
			result = Pair.generatePairs(rxRSS, RSSdf);
		
		Collections.sort(result);
		
		return result;
		
	}