public static String getFrequecyStats(){
		String userFreqStats = "";
		//int sum = 0;
		for(int i=0; i<myMemberObjs.length; i++){
			userFreqStats+=myMemberObjs[i].get_uid()+" ,"+userFreqShards[myMemberObjs[i].get_shardIdx()][myMemberObjs[i].get_idxInShard()]+"\n";
			//sum += userFreqShards[myMemberObjs[i].get_shardIdx()][myMemberObjs[i].get_idxInShard()];	
		}

		return userFreqStats;
	}