C# 求方差和平均值并保存

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using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;using System.IO;namespace ConsoleApplication7{ class Program {  static void Main(string[] args)  {   List<byte[]> Zhendata = new List<byte[]>();   byte[] byt1 = { 0x01, 0x1e, 0x1d, 0x1c, 0x1b, 0x1a, 0x19, 0x18, 0x17, 0x16, 0x15 };   byte[] byt2 = { 0x02, 0x14, 0x13, 0x12, 0x11, 0x10, 0x0f, 0x0e, 0x0d, 0x0c, 0x0b };   byte[] byt3 = { 0x03, 0x0a, 0x09, 0x08, 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01 };   Zhendata.Add(byt1);   Zhendata.Add(byt2);   Zhendata.Add(byt3);   adDataCaculate(Zhendata);  }  public static void adDataCaculate(List<byte[]> Zhendata)  {   byte[] byteData = new byte[30];   int count1 = 0, count2 = 0;   StringBuilder sNeed = new StringBuilder();   foreach (Byte[] Package in Zhendata)   {    count1 = 0;    foreach (byte byt in Package)    {     if (count1 >=1) //跳过第一个数     {      byteData[count2] = byt;      count2++;      // Console.Write("--" + byt);     }     count1++;     }   }   // Console.ReadKey();   double[] channel = new double[5];   double variance = 0.0, average = 0.0;   for (int i = 0; i < 3; i++)   {    for (int j = 0; j < 5; j++)    {     channel[j] = byteData[j * 6 + i*2] + byteData[j * 6 + i*2+1];     sNeed.Append(channel[j] + ",");    }    variance = Var(channel);    sNeed.Append(variance + "--");    average = channel.Average();    sNeed.Append(average);    strWrite(sNeed.ToString(), Environment.CurrentDirectory + "\\channelData", "channelData.txt");    sNeed.Clear();   }  }  public static double Var(double[] v)  {   double sum1 = 0;   for (int i = 0; i < v.Length; i++)   {    double temp = v[i] * v[i];    sum1 = sum1 + temp;   }   double sum = 0;   foreach (double d in v)   {    sum = sum + d;   }   double var = sum1 / v.Length - (sum / v.Length) * (sum / v.Length);   return var;  }  private static int rowCount = 0;  private static void strWrite(string str, string filePath, string fileName)  {   if (!Directory.Exists(filePath))    Directory.CreateDirectory(filePath);   if (!File.Exists(filePath + "\\" + fileName))    File.Create(filePath + "\\" + fileName).Close(); //.Close 很关键，不然会有问题   if (rowCount < 3600)   {    StreamWriter sw = new StreamWriter(filePath + "\\" + fileName, true);//true 追加数据    sw.WriteLine(str);    sw.Close();    rowCount++;   }   else   {    StreamWriter sw = new StreamWriter(filePath + "\\" + fileName, false);//true 追加数据    sw.WriteLine(str);    sw.Close();    rowCount = 0;   }  } }}

　　追加了温度数据：

using System;using System.Collections.Generic;using System.Linq;using System.Text;using ThzData;using System.Threading.Tasks;using System.Net;using System.Net.Sockets;using System.Threading;using System.IO;using System.Diagnostics;using System.Drawing;using ThzDataProcess;using System.Windows.Forms;namespace BLL{ class DataCalculate {    public void tempartureData_zyr(List<byte[]> Zhendata)  {   StringBuilder sNeed = new StringBuilder();   foreach (Byte[] match in Zhendata)    sNeed.Append(BitConverter.ToString(match).Replace("-", "").Substring(20).ToUpper());   double[] temparture = GetTemparture_zyr(sNeed.ToString());   sNeed.Clear();   foreach (var tem in temparture)    sNeed.Append(tem + "***");   strWrite_zyr(sNeed.ToString(), Environment.CurrentDirectory + "\\bin", "tempartureData.txt");   sNeed.Clear();  }  public double[] GetTemparture_zyr(string str)  {   string tepStr = str.Substring(20 * 2, 8 * 2);   double[] Temparture = new double[4];   if (tepStr == null)    return Temparture;   byte[] Wen = DataProcess.strToToHexByte(tepStr);   if ((Wen[0] & 0xf0) >> 4 == 15)    Temparture[0] = -(~Wen[1] + 1 + 256.0 * ~Wen[0]) / 16;   else    Temparture[0] = (Wen[1] + 256.0 * Wen[0]) / 16;   if ((Wen[2] & 0xf0) >> 4 == 15)    Temparture[1] = -(~Wen[3] + 1 + 256.0 * ~Wen[2]) / 16;   else    Temparture[1] = (Wen[3] + 256.0 * Wen[2]) / 16;   if ((Wen[4] & 0xf0) >> 4 == 15)    Temparture[2] = -(~Wen[5] + 1 + 256.0 * ~Wen[4]) / 16;   else    Temparture[2] = (Wen[5] + 256.0 * Wen[4]) / 16;   if ((Wen[6] & 0xf0) >> 4 == 15)    Temparture[3] = -(~Wen[7] + 1 + 256.0 * ~Wen[6]) / 16;   else    Temparture[3] = (Wen[7] + 256.0 * Wen[6]) / 16;   return Temparture;  }  public void adDataCaculate_zyr(List<byte[]> Zhendata)  {   byte[] byteData = new byte[35250];//1410*25   int count1 = 0, count2 = 0;   StringBuilder sNeed = new StringBuilder();   foreach (Byte[] Package in Zhendata)   {    count1 = 0;    foreach (byte byt in Package)    {     if (count1 >= 20) //跳过第一个数     {      byteData[count2] = byt;      count2++;     }     count1++;    }   }   // Console.ReadKey();   double[] channel = new double[473];   double variance = 0.0, average = 0.0;   for (int i = 0; i < 36; i++)   {    for (int j = 0; j < 473; j++)    {     byte bigByte = Convert.ToByte(byteData[j * 74 + i * 2].ToString("X"), 16);     if ((bigByte & 0xf0) >> 4 == 15)      channel[j] = -(~byteData[j * 74 + i * 2 + 30] + 1 + 256.0 * ~byteData[j * 74 + i * 2 + 31]) / 16;     else      channel[j] = (byteData[j * 74 + i * 2 + 30] + 256.0 * ~byteData[j * 74 + i * 2 + 31]) / 16;     sNeed.Append(channel[j] + ",");    }    variance = Var_zyr(channel);    sNeed.Append("***variance:" + variance + "***average:");    average = channel.Average();    sNeed.Append(average);    strWrite_zyr(sNeed.ToString(), Environment.CurrentDirectory + "\\bin", "channelData.txt");    sNeed.Clear();   }  }  public double Var_zyr(double[] v)  {   double sum1 = 0;   for (int i = 0; i < v.Length; i++)   {    double temp = v[i] * v[i];    sum1 = sum1 + temp;   }   double sum = 0;   foreach (double d in v)   {    sum = sum + d;   }   double var = sum1 / v.Length - (sum / v.Length) * (sum / v.Length);   return var;  }  private int rowCount = 0;  private void strWrite_zyr(string str, string filePath, string fileName)  {   if (!Directory.Exists(filePath))    Directory.CreateDirectory(filePath);   if (!File.Exists(filePath + "\\" + fileName))    File.Create(filePath + "\\" + fileName).Close(); //.Close 很关键，不然会有问题   if (rowCount < 3600)   {    StreamWriter sw = new StreamWriter(filePath + "\\" + fileName, true);//true 追加数据    sw.WriteLine(str);    sw.Close();    rowCount++;   }   else   {    StreamWriter sw = new StreamWriter(filePath + "\\" + fileName, false);    sw.WriteLine(str);    sw.Close();    rowCount = 0;   }  } }}

　　

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