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using ServerApp.Parser.InputData;
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using ServerApp.Parser.OutputInfo;
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using System;
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using System.Collections.Generic;
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using System.IO;
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namespace ServerApp.Parser.Parsers
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{
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/// <summary>
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/// Class parsing weather files into instances of WeatherInfo divided by given time interval
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/// Data parsed from 7am (included) to 18pm (included)
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/// </summary>
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/// <author>Alex Konig</author>
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class WeatherParser
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{
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/// <summary> Datafile loader </summary>
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DataLoader loader;
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/// <summary>
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/// Constructor
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/// </summary>
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/// <param name="loader">Datafile loader</param>
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public WeatherParser(DataLoader loader)
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{
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this.loader = loader;
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}
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/// <summary>
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/// Parses weather data to WeatherInfo instances
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/// Data parsed from 7am (included) to 18pm (included)
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/// </summary>
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/// <param name="folder">Folder with weather data files</param>
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/// <param name="wholeDay">Should data be parsed as one instance per day (if true parameter interval will be ignored)</param>
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/// <param name="interval">Time interval to divide days by, minimum is 1h</param>
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/// <returns></returns>
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public List<WeatherInfo> ParseWeatherData(string folder, bool wholeDay = true, int interval = 1)
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{
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if (!Directory.Exists(folder))
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return null;
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List<WeatherInfo> list = new List<WeatherInfo>();
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// get all files in folder
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string[] fileEntries = Directory.GetFiles(folder);
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foreach (string fileName in fileEntries)
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{
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List<WeatherInfo> loadedData = null;
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// parse as one instance per day
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if (wholeDay)
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loadedData = ProcessOneWeatherFileAsDays(fileName);
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// parse according to interval
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else
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{
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loadedData = ProcessOneWeatherFileAsIntervals(fileName, interval);
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}
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list.AddRange(loadedData);
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}
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return list;
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}
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/// <summary>
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/// Parses data from one data file as one instance per day
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/// </summary>
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/// <param name="path">Path ti file</param>
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/// <returns>List with WeatherInfo instances</returns>
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private List<WeatherInfo> ProcessOneWeatherFileAsDays(string path)
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{
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if (!File.Exists(path))
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return null;
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List<WeatherInfo> weatherInfo = new List<WeatherInfo>();
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List<WeatherInstance> list = loader.LoadWeatherFile(path);
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// array with data [temp, rain, wind, lum]
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double[] recordedAmount = new double[4];
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// min/max hour taken into account
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int[] minmaxHour = new int[] { 7, 18 };
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// interval length
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int range = minmaxHour[1] - minmaxHour[0];
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// first day
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DateTime lastStartDay = new DateTime(list[0].dateTime.Year, list[0].dateTime.Month, list[0].dateTime.Day, minmaxHour[0], 0, 0);
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// number of values in day
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int values = 0, weatherValues = 0;
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for (int i = 0; i < list.Count; i++)
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{
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int currHour = list[i].dateTime.Hour;
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if (currHour < minmaxHour[0] || currHour > minmaxHour[1])
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continue;
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// start of new day -> make a new instance
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DateTime date = new DateTime(list[i].dateTime.Year, list[i].dateTime.Month, list[i].dateTime.Day, minmaxHour[0], 0, 0);
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if (!date.Equals(lastStartDay))
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{
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WeatherInfo dayInfo = new WeatherInfo(lastStartDay, recordedAmount[0] / values, (int)(recordedAmount[1] / values * 100), recordedAmount[2] / values, recordedAmount[3] / weatherValues, range);
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weatherInfo.Add(dayInfo);
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recordedAmount = new double[4];
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lastStartDay = date;
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values = 0;
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weatherValues = 0;
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}
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// aggregate data
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recordedAmount[0] += list[i].temp;
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recordedAmount[1] += list[i].rain;
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recordedAmount[2] += list[i].wind;
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if (LuxToConditions.TransferLuxToConditions(list[i].lum * 1000) != WeatherConditions.Dark)
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recordedAmount[3] += list[i].lum * 1000; weatherValues++;
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values++;
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}
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// data from last day
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WeatherInfo dayInfo2 = new WeatherInfo(lastStartDay, recordedAmount[0] / values, (int)(recordedAmount[1] / values * 100), recordedAmount[2] / values, recordedAmount[3] / values, range);
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weatherInfo.Add(dayInfo2);
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return weatherInfo;
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}
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/// <summary>
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/// Parses data from one data file as one instance per interval length
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/// </summary>
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/// <param name="path">Path to file</param>
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/// <param name="interval">Interval length</param>
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/// <returns>List with ActivityInfo instances</returns>
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private List<WeatherInfo> ProcessOneWeatherFileAsIntervals(string path, int interval)
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{
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if (!File.Exists(path))
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return null;
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List<WeatherInfo> loignInfo = new List<WeatherInfo>();
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List<WeatherInstance> list = loader.LoadWeatherFile(path);
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// min/max hour taken into account
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int[] minmaxHour = new int[] { 7, 18 };
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int range = minmaxHour[1] - minmaxHour[0];
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if (interval > range)
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return null;
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int indices = (int)Math.Ceiling(range / (double)interval);
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int[] to = new int[indices];
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double[][] data = new double[indices][];
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int[] count = new int[indices];
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for (int i = 0; i < to.Length; i++)
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{
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to[i] = minmaxHour[0] + interval * (i + 1);
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data[i] = new double[4];
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}
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// first day
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DateTime lastStartTime = new DateTime(list[0].dateTime.Year, list[0].dateTime.Month, list[0].dateTime.Day, minmaxHour[0], 0, 0);
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int index;
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for (int i = 0; i < list.Count; i++)
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{
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int currHour = list[i].dateTime.Hour;
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if (currHour < minmaxHour[0] || currHour > minmaxHour[1])
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continue;
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// start of the day -> make an instance
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DateTime date = new DateTime(list[i].dateTime.Year, list[i].dateTime.Month, list[i].dateTime.Day, list[i].dateTime.Hour, 0, 0);
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// end of the day
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if (!(date.Year == lastStartTime.Year && date.Month == lastStartTime.Month && date.Day == lastStartTime.Day))
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{
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// note down all aggregated data
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for (int k = 0; k < to.Length; k++)
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{
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int raincount = 0;
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double rainval = 0;;
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for (int l = 0; l <= k; l++)
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{
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raincount += count[l];
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rainval += data[l][1];
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}
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DateTime stTime = new DateTime(lastStartTime.Year, lastStartTime.Month, lastStartTime.Day, to[k] - interval, 0, 0);
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WeatherInfo intervalInfo = new WeatherInfo(stTime, data[k][0] / count[k], (int)((rainval / raincount) * 100), data[k][2] / count[k], data[k][3] / count[k], interval);
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if (count[k] != 0)
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loignInfo.Add(intervalInfo);
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}
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lastStartTime = date;
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count = new int[indices];
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for (int l = 0; l < data.Length; l++)
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data[l] = new double[4];
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}
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// find index for current instance
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index = 0;
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for (int k = 1; k < to.Length; k++)
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{
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if (to[k] > list[i].dateTime.Hour && to[k - 1] <= list[i].dateTime.Hour)
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{
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index = k;
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break;
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}
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}
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// aggregate data
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data[index][0] += list[i].temp;
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data[index][1] += list[i].rain;
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data[index][2] += list[i].wind;
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data[index][3] += list[i].lum * 1000;
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count[index]++;
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}
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for (int k = 0; k < to.Length; k++)
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{
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int raincount = 0;
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double rainval = 0; ;
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for (int l = 0; l <= k; l++)
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{
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raincount += count[l];
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rainval += data[l][1];
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}
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DateTime stTime = new DateTime(lastStartTime.Year, lastStartTime.Month, lastStartTime.Day, to[k] - interval, 0, 0);
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WeatherInfo intervalInfo = new WeatherInfo(stTime, data[k][0] / count[k], (int)((rainval / raincount) * 100), data[k][2] / count[k], data[k][3] / count[k], interval);
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if (count[k] != 0)
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loignInfo.Add(intervalInfo);
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}
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return loignInfo;
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}
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}
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}
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