資源簡介
private void Compute()
{
for (int i = 0; i < 100; i )
{
double distance = -1;
for (int j = 0; j < 4; j )
{
int tempDistance = (this.Center[j].X - this.Points[i].X) * (this.Center[j].X - this.Points[i].X) (this.Center[j].Y - this.Points[i].Y) * (this.Center[j].Y - this.Points[i].Y);
if ((Math.Sqrt(tempDistance) < distance) || j == 0)
{
distance = Math.Sqrt(tempDistance);
Points[i].Focus = j;
}
}
}
}
/// <summary>
/// 更新中心
/// </summary>
private void UpdateCenter()
{
for (int i = 0; i < this.K; i )
{
int x = 0, y = 0, count = 0;
for (int j = 0; j < 100; j )
{
if (Points[j].Focus == i)
{
x = Points[j].X;
y = Points[j].Y;
count ;
}
}
//利用三目運算符，防止出現除以0的不合法運算
x = x / (count == 0 ? 1 : count);
y = y / (count == 0 ? 1 : count);
Center[i].X = x;
Center[i].Y = y;
}
}
代碼片段和文件信息
using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Text;
using?System.Windows.Forms;
namespace?Kmeans
{
????public?struct?Point1
????{
????????public?int?X;
????????public?int?Y;
????????public?int?Focus;
????}
????public?partial?class?Form1?:?Form
????{
????????public?Point1[]?Points?=?new?Point1[100];
????????public?Point1[]?Center?=?new?Point1[4];
????????int?K?=?4;
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}
????????private?void?Form1_Load（object?sender?EventArgs?e）
????????{
????????????
????????????Random?randXY?=?new?Random（）;
????????????
????????????//初始化數據
????????????for?（int?i?=?0;?i?????????????{
????????????????Random?randFocus?=?new?Random（）;
????????????????//數據對象
????????????????Points[i]?=?new?Point1（）;
????????????????Points[i].X?=?randXY.Next（500）;
????????????????Points[i].Y?=?randXY.Next（500） ?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件??????11264??2017-03-29?17:31??Kmeans\bin\Debug\Kmeans.exe
?????文件??????26112??2017-03-29?17:31??Kmeans\bin\Debug\Kmeans.pdb
?????文件??????11600??2017-03-30?14:34??Kmeans\bin\Debug\Kmeans.vshost.exe
?????文件????????490??2012-06-06?02:06??Kmeans\bin\Debug\Kmeans.vshost.exe.manifest
?????文件???????6854??2017-03-29?17:31??Kmeans\Form1.cs
?????文件???????2098??2012-07-27?15:46??Kmeans\Form1.Designer.cs
?????文件???????5814??2012-07-27?15:46??Kmeans\Form1.resx
?????文件???????4746??2017-03-29?14:37??Kmeans\Kmeans.csproj
?????文件????????452??2017-03-29?14:37??Kmeans\Kmeans.csproj.user
?????文件???????1533??2017-03-29?14:36??Kmeans\Kmeans.sln
????..A..H.?????22016??2017-03-30?17:28??Kmeans\Kmeans.suo
?????文件???????6234??2017-03-29?17:31??Kmeans\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache
?????文件???????1343??2017-03-30?14:34??Kmeans\obj\x86\Debug\Kmeans.csproj.FileListAbsolute.txt
?????文件????????902??2017-03-29?14:37??Kmeans\obj\x86\Debug\Kmeans.csproj.GenerateResource.Cache
?????文件??????11264??2017-03-29?17:31??Kmeans\obj\x86\Debug\Kmeans.exe
?????文件????????180??2017-03-29?14:37??Kmeans\obj\x86\Debug\Kmeans.Form1.resources
?????文件??????26112??2017-03-29?17:31??Kmeans\obj\x86\Debug\Kmeans.pdb
?????文件?????101482??2012-07-27?14:51??Kmeans\obj\x86\Debug\ResolveAssemblyReference.cache
?????文件???????5496??2012-07-27?14:51??Kmeans\Program.cs
?????文件???????1344??2012-02-15?16:37??Kmeans\Properties\AssemblyInfo.cs
?????文件????????849??2017-03-29?14:36??Kmeans\UpgradeLog.xm
?????文件???????3348??2017-03-29?14:36??Kmeans\_UpgradeReport_Files\UpgradeReport.css
?????文件??????12505??2010-05-04?01:19??Kmeans\_UpgradeReport_Files\UpgradeReport.xslt
?????文件?????????69??2017-03-29?14:36??Kmeans\_UpgradeReport_Files\UpgradeReport_Minus.gif
?????文件?????????71??2017-03-29?14:36??Kmeans\_UpgradeReport_Files\UpgradeReport_Plus.gif
?????目錄??????????0??2012-02-15?16:37??Kmeans\obj\x86\Debug\TempPE
?????目錄??????????0??2017-03-29?17:31??Kmeans\obj\x86\Debug
?????目錄??????????0??2017-03-30?14:33??Kmeans\bin\Debug
?????目錄??????????0??2017-03-29?14:35??Kmeans\bin\Release
?????目錄??????????0??2012-02-15?16:37??Kmeans\obj\x86
............此處省略8個文件信息
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