private static void RTcounter(File file) throws Exception { //邾
		InputStreamReader isr = new InputStreamReader(new FileInputStream(file));
		BufferedReader br = new BufferedReader(isr);
		String line = br.readLine(); //擪s(URL)
		@SuppressWarnings("unused")
		String key = line;
		
		int count = 0;
		int dataMin = Integer.MAX_VALUE;
		int dataMax = 0;
		while((line = br.readLine()) != null) {
			count++;
			StringTokenizer st = new StringTokenizer(line, ",");
			int dataInt = Integer.parseInt(st.nextToken());
			if(dataInt < dataMin) dataMin = dataInt;
			if(dataInt > dataMax) dataMax = dataInt;
		}
		
		br.close();
		isr.close();
		
		/*long originalDate = getDate(key);
		int isFirstHalf = middleOfPeriod.compareTo(new Date(originalDate));*/
		
		if(dataMin < secondsaDay && dataMax > halfOfPeriod) retweetCount.put(file, count);
		if(count < RTcountMin) RTcountMin = count;
		if(count > RTcountMax) RTcountMax = count;
	}