原创--C#实例编程3
层次分析法Analitic Hierachy Process (AHP)
一、需求分析
问题举例
1. 在海尔、新飞、容声和雪花四个牌号的电冰箱中选购一种。要考虑品牌的信誉、冰箱的功能、价格和耗电量。
2. 在泰山、杭州和承德三处选择一个旅游点。要考虑景点的景色、居住的环境、饮食的特色、交通便利和旅游的费用。
3. 在基础研究、应用研究和数学教育中选择一个领域申报科研课题。要考虑成果的贡献（实用价值、科学意义），可行性（难度、周期和经费）和人才培养。
模型和方法
1. 层次结构模型的构造
步骤一：确定层次结构，将决策的目标、考虑的因素（决策准则）和决策对象按它们之间的相互关系分为最高层、中间层和最低层，绘出层次结构图。
最高层：决策的目的、要解决的问题。
最低层：决策时的备选方案。
中间层：考虑的因素、决策的准则。
对于相邻的两层，称高层为目标层，低层为因素层。
步骤二： 通过相互比较，确定下一层各因素对上一层目标的影响的权重，将定性的判断定量化，即构造因素判断矩阵。
步骤三：由矩阵的特征值确定判别的一致性；由相应的特征向量表示各因素的影响权重，计算权向量。
步骤四： 通过综合计算给出最底层（各方案）对最高层（总目标）影响的权重，权重最大的方案即为实现目标的最由选择。
2. 因素判断矩阵
比较n个因素y=(y1,y2,…,yn)对目标 z 的影响.
采用两两成对比较，用aij表示因素 yi与因素yj对目标z的影响程度之比。
通常用数字 1~ 9及其倒数作为程度比较的标度， 即九级标度法
xi/xj 相当 较重要 重要 很重要 绝对重要
aij 1 3 5 7 9
2, 4, 6, 8 居于上述两个相邻判断之间。
当aij > 1时，对目标 Z来说 xi 比 xj重要, 其数值大小表示重要的程度。
同时必有 aji = 1/ aij 1，对目标 Z来说 xj比 xi 不重要，其数值大小表示不重要的程度。
称矩阵 A = （ aij ）为因素判断矩阵。
因为 aij >0 且 aji =1/ aij 故称A = (aij )为正互反矩阵。
例. 选择旅游景点 Z：目标，选择景点 y：因素，决策准则
y1 费用，y2 景色，y3 居住，y4 饮食，y5 交通
3. 一致性与权向量
如果 aij ajk =aik i, j, k=1,2,…,n， 则称正互反矩阵A具有一致性. 这表明对各个因素所作的两两比较是可传递的。
一致性互正反矩阵A=( aij )具有性质:
A的每一行(列)均为任意指定行(列)的正数倍数,因此 rank(A)=1.
A有特征值=n, 其余特征值均为零.
记A的对应特征值=n的特征向量为w=(w1 w2 ,…, wn) 则 aij =wi wj-1
如果在目标z中n个因素y=(y1,y2,…,yn)所占比重分别为w=(w1 w2 ,…, wn),
则 iwi =1, 且因素判断矩阵为 A=(wi wj-1) 。
因此，称一致性正互反矩阵A相应于特征值n的归一化特征向量为因素y=(y1,y2,…,yn)对目标z的权向量
4. 一致性检验与因素排序
定理1: n阶正互反矩阵A是一致性的当且仅当其最大特征值为 n.
定理2: 正互反矩阵具有模最大的正实数特征值1, 其重数为1, 且相应特征向量为正向量.
为刻画n阶正互反矩阵A=( aij )与一致性接近的程度, 定义一致性指标(Consensus index) :
CI=(1-n)/(n-1)
CI = 0, A 有完全的一致性。CI 接近于 0, A 有满意的一致性 。
Saaty又引入平均随机一致性指标RT
n 1 2 3 4 5 6 7 8 9
RI 0 0 0.58 0.90 1.12 1.24 1.32 1.41 1.45
当CR = CI / RI < 0.1 时, 认为A 有满意的一致性。
此时取A 的相应于1 的归一化特征向量w=(w1 w2 ,…, wn)为因素y=(y1,y2,…,yn)对目标z的权向量。由w=( w2 ,…, wn)分量wi的大小可以对因素的重要性排序。
择校排名
二、使用的知识要点
1.动态生成控件
三、主程序界面
四、主要程序段
动态生本控件，并加上相应所需要的方法:
//初始化文本框
private void Initextbox(int len,string[] str)
{
this.groupBox1.Controls.Clear();//清空不用的控件
TextBox mytextbox;//定义文本框
int x=this.groupBox1.Location.X+10;
int y=this.groupBox1.Location.Y+40;
for(int i = 0; i<len;i++)//生成标签
{
Label mylabel = new Label();
mylabel.Text = str[i].ToString();
mylabel.Location = new Point(x+i*60,y-40);
mylabel.AutoSize = true;
this.groupBox1.Controls.Add(mylabel);
}
for(int i=0;i<len;i++)//生成文本框
{
for(int j=0;j<len;j++)
{
mytextbox = new TextBox();
mytextbox.Size = new System.Drawing.Size(60,20);
mytextbox.BackColor = Color.LightGoldenrodYellow;
mytextbox.Name = "mytextbox"+i+j;
mytextbox.Leave += new System.EventHandler(this.textBox_mouseover);
mytextbox.Location = new Point(x,y);
if(i==j)
{
mytextbox.BackColor = Color.Wheat;
mytextbox.Text = "1";
mytextbox.Enabled = false;
}
if(i<j)
{
mytextbox.BackColor = SystemColors.ActiveBorder;
mytextbox.Enabled = false;
}
this.groupBox1.Controls.Add(mytextbox);
x+=60;
}
x=this.groupBox1.Location.X+10;
y+=20;
}
}
相应的方法：
//控制文本框
private void textBox_mouseover(object sender,System.EventArgs e)
{
TextBox temptextbox = (TextBox) sender;
string tempstr = temptextbox.Name.ToString();
if(temptextbox.Text.Trim() == "")
{
// MessageBox.Show("没有输入数字");
// temptextbox.Focus();
}
else
{
string i = tempstr.Substring(tempstr.Length-2,1);
string j = tempstr.Substring(tempstr.Length-1,1);
foreach(Control tempC in this.groupBox1.Controls)
{
if(tempC is TextBox)
{
if(tempC.Name.ToString() == "mytextbox"+j+i)
{
if(temptextbox.Text.ToString().Trim().IndexOf("/")>0)
tempC.Text = temptextbox.Text.ToString().Substring(temptextbox.Text.ToString().Trim().Length-1,1);
else if(temptextbox.Text.ToString().Trim()=="1")
tempC.Text = "1";
else
tempC.Text = "1/"+temptextbox.Text;
}
}
}
}
}//textBox_mouseover
获取第个文本框的值：
private void getdata(double[,] matrix)
{
foreach(Control tempC in this.groupBox1.Controls)
{
try
{
if(tempC is TextBox)
{
string tempstr = tempC.Text.ToString().Trim();
if(tempstr == "")
{
MessageBox.Show("有文本框没有填数据！");
return;
}
int i = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-2,1));
int j = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-1,1));
if(tempstr.IndexOf("/")>0)
{
matrix[i,j] = Convert.ToDouble(tempstr.Substring(0,1))/Convert.ToDouble(tempstr.Substring(tempstr.Length-1,1));
}
else
matrix[i,j]=Convert.ToDouble(tempstr);
}
}
catch(Exception err)
{
MessageBox.Show(err.ToString());
}
}
}
五、所有程序代码
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
namespace 经济管理模型
{
/// <summary>
/// ccfx2 的摘要说明。
/// </summary>
public class ccfx2 : System.Windows.Forms.Form
{
private static double[] RI = {0,0,0,0.58,0.90,1.12,1.24,1.32,1.41,1.45};
private Int32 LenA;//准则数
private System.Int32 LenB;//方案数
private double[,] zhuzematrix;//准则数方阵
private double[][,] fanganmatrix;//方案阵
private string[] zhuze;//准则字符串
private string[] fangan;//方案字符串
private int Stepcount=0;//录入矩阵的步骤
private double[] W;//单序w
private double[,] TW;//总序w
private double[] Torder;//总的方案排名
private double lamda;//单序最大lamda
private double[] Tlamda;//总序lamda
private System.Windows.Forms.GroupBox groupBox1;
private System.Windows.Forms.Label label5;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.TextBox textBox2;
private System.Windows.Forms.Button button2;
/// <summary>
/// 必需的设计器变量。
/// </summary>
private System.ComponentModel.Container components = null;
public ccfx2()
{
//
// Windows 窗体设计器支持所必需的
//
InitializeComponent();
//
// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
//
}
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows 窗体设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.groupBox1 = new System.Windows.Forms.GroupBox();
this.textBox2 = new System.Windows.Forms.TextBox();
this.textBox1 = new System.Windows.Forms.TextBox();
this.label2 = new System.Windows.Forms.Label();
this.label1 = new System.Windows.Forms.Label();
this.label5 = new System.Windows.Forms.Label();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.groupBox1.SuspendLayout();
this.SuspendLayout();
//
// groupBox1
//
this.groupBox1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.groupBox1.Controls.Add(this.textBox2);
this.groupBox1.Controls.Add(this.textBox1);
this.groupBox1.Controls.Add(this.label2);
this.groupBox1.Controls.Add(this.label1);
this.groupBox1.Location = new System.Drawing.Point(0, 8);
this.groupBox1.Name = "groupBox1";
this.groupBox1.Size = new System.Drawing.Size(616, 360);
this.groupBox1.TabIndex = 15;
this.groupBox1.TabStop = false;
//
// textBox2
//
this.textBox2.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.textBox2.BackColor = System.Drawing.Color.Ivory;
this.textBox2.Location = new System.Drawing.Point(128, 80);
this.textBox2.Name = "textBox2";
this.textBox2.Size = new System.Drawing.Size(472, 20);
this.textBox2.TabIndex = 3;
this.textBox2.Text = "";
//
// textBox1
//
this.textBox1.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.textBox1.BackColor = System.Drawing.Color.Ivory;
this.textBox1.Location = new System.Drawing.Point(128, 48);
this.textBox1.Name = "textBox1";
this.textBox1.Size = new System.Drawing.Size(472, 20);
this.textBox1.TabIndex = 2;
this.textBox1.Text = "";
this.textBox1.TextChanged += new System.EventHandler(this.textBox1_TextChanged);
//
// label2
//
this.label2.Location = new System.Drawing.Point(24, 80);
this.label2.Name = "label2";
this.label2.TabIndex = 1;
this.label2.Text = "方案：";
//
// label1
//
this.label1.Location = new System.Drawing.Point(24, 48);
this.label1.Name = "label1";
this.label1.TabIndex = 0;
this.label1.Text = "准则：";
//
// label5
//
this.label5.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.label5.AutoSize = true;
this.label5.ForeColor = System.Drawing.Color.Red;
this.label5.Location = new System.Drawing.Point(16, 384);
this.label5.Name = "label5";
this.label5.Size = new System.Drawing.Size(0, 16);
this.label5.TabIndex = 16;
//
// button1
//
this.button1.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
this.button1.Location = new System.Drawing.Point(456, 384);
this.button1.Name = "button1";
this.button1.TabIndex = 17;
this.button1.Text = "下一步";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
this.button2.Location = new System.Drawing.Point(536, 384);
this.button2.Name = "button2";
this.button2.TabIndex = 21;
this.button2.Text = "从例子获取";
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// ccfx2
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(616, 421);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.Controls.Add(this.label5);
this.Controls.Add(this.groupBox1);
this.Name = "ccfx2";
this.Text = "层次分析法";
this.Load += new System.EventHandler(this.ccfx2_Load);
this.groupBox1.ResumeLayout(false);
this.ResumeLayout(false);
}
#endregion
private void ccfx2_Load(object sender, System.EventArgs e)
{
}
//初始化变量
private void InitValue()//
{
//录入准则字符串
this.zhuze = this.textBox1.Text.ToString().Trim().Split(',');
this.fangan = this.textBox2.Text.ToString().Trim().Split(',');
this.LenA = zhuze.Length;
this.LenB = fangan.Length;
if(this.LenA !=5 || this.LenB != 3) this.button2.Visible = false;
//==实例化各变量
this.zhuzematrix = new double[this.LenA,this.LenA];
this.fanganmatrix = new double[this.LenA][,];
for(int i = 0;i<LenA;i++)
this.fanganmatrix[i] = new double[LenB,LenB];
this.W = new double[LenA];
this.TW = new double[LenA,LenB];
this.Torder = new double[LenB];
this.Tlamda = new double[LenA];
//==
this.groupBox1.Controls.Clear();
this.label5.Text="请输入准则层相对目标的判别矩阵";
}
//初始化文本框
private void Initextbox(int len,string[] str)
{
this.groupBox1.Controls.Clear();//清空不用的控件
TextBox mytextbox;//定义文本框
int x=this.groupBox1.Location.X+10;
int y=this.groupBox1.Location.Y+40;
for(int i = 0; i<len;i++)//生成标签
{
Label mylabel = new Label();
mylabel.Text = str[i].ToString();
mylabel.Location = new Point(x+i*60,y-40);
mylabel.AutoSize = true;
this.groupBox1.Controls.Add(mylabel);
}
for(int i=0;i<len;i++)//生成文本框
{
for(int j=0;j<len;j++)
{
mytextbox = new TextBox();
mytextbox.Size = new System.Drawing.Size(60,20);
mytextbox.BackColor = Color.LightGoldenrodYellow;
mytextbox.Name = "mytextbox"+i+j;
mytextbox.Leave += new System.EventHandler(this.textBox_mouseover);
mytextbox.Location = new Point(x,y);
if(i==j)
{
mytextbox.BackColor = Color.Wheat;
mytextbox.Text = "1";
mytextbox.Enabled = false;
}
if(i<j)
{
mytextbox.BackColor = SystemColors.ActiveBorder;
mytextbox.Enabled = false;
}
this.groupBox1.Controls.Add(mytextbox);
x+=60;
}
x=this.groupBox1.Location.X+10;
y+=20;
}
}
//控制文本框
private void textBox_mouseover(object sender,System.EventArgs e)
{
TextBox temptextbox = (TextBox) sender;
string tempstr = temptextbox.Name.ToString();
if(temptextbox.Text.Trim() == "")
{
// MessageBox.Show("没有输入数字");
// temptextbox.Focus();
}
else
{
string i = tempstr.Substring(tempstr.Length-2,1);
string j = tempstr.Substring(tempstr.Length-1,1);
foreach(Control tempC in this.groupBox1.Controls)
{
if(tempC is TextBox)
{
if(tempC.Name.ToString() == "mytextbox"+j+i)
{
if(temptextbox.Text.ToString().Trim().IndexOf("/")>0)
tempC.Text = temptextbox.Text.ToString().Substring(temptextbox.Text.ToString().Trim().Length-1,1);
else if(temptextbox.Text.ToString().Trim()=="1")
tempC.Text = "1";
else
tempC.Text = "1/"+temptextbox.Text;
}
}
}
}
}//textBox_mouseover
//
private void mytextboxclear()
{
foreach(Control tempC in this.groupBox1.Controls)
{
if(tempC is TextBox)
{
string tempstr = tempC.Text.ToString().Trim();
int i = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-2,1));
int j = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-1,1));
if(i==j) tempC.Text = "1";
else tempC.Text = "";
}
}
}
private void vieworder()
{
int i,j;
int[] temp = new int[this.LenA];
for(i = 0;i < this.LenA;i++)
temp[i] = i;
for(i=0;i<this.LenA;i++)
for(j=i+1;j<this.LenA;j++)
if(this.W[temp[i]] < this.W[temp[j]])
{int t=temp[i];temp[i] = temp[j];temp[j]=t;}
string str="";
for(i=0;i<this.LenA;i++)
//str+=this.zhuze[temp[i]].ToString()+"："+this.W[temp[i]].ToString();
{
Label templabel = new Label();
templabel.Text = this.zhuze[temp[i]].ToString()+"："+this.W[temp[i]].ToString();
templabel.Location = new Point(this.groupBox1.Location.X+10,this.groupBox1.Location.Y+i*20+40);
templabel.AutoSize = true;
this.groupBox1.Controls.Add(templabel);//END 处理单序排序
}
//Label templabel = new Label();
//templabel.Text = str;
//templabel.Location = new Point(this.groupBox1.Location.X+10,this.groupBox1.Location.Y+40);
//templabel.AutoSize = true;
//templabel.Width = 20*LenA;
//this.groupBox1.Controls.Add(templabel);//END 处理单序排序
for(j=0;j<LenB;j++)
for(i=0;i<LenA;i++)
Torder[j] +=W[i]*TW[i,j];
int[] Ttemp = new int[this.LenB];
for(i = 0;i < this.LenB;i++)
Ttemp[i] = i;
for(i=0;i<this.LenB;i++)
for(j=i+1;j<this.LenB;j++)
if(this.Torder[Ttemp[i]] < this.Torder[Ttemp[j]])
{int t=Ttemp[i];Ttemp[i] = Ttemp[j];Ttemp[j]=t;}
str="";
for(i=0;i<this.LenB;i++)
str+=this.fangan[Ttemp[i]].ToString()+"："+this.Torder[Ttemp[i]].ToString()+"\t";
Label templabel2 = new Label();
templabel2.Text = str;
templabel2.Location = new Point(this.groupBox1.Location.X+10,this.groupBox1.Location.Y+20*LenA+80);
templabel2.AutoSize = true;
this.groupBox1.Controls.Add(templabel2);//END 处理总序排序
}
private void getdata(double[,] matrix)
{
foreach(Control tempC in this.groupBox1.Controls)
{
try
{
if(tempC is TextBox)
{
string tempstr = tempC.Text.ToString().Trim();
if(tempstr == "")
{
MessageBox.Show("有文本框没有填数据！");
return;
}
int i = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-2,1));
int j = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-1,1));
if(tempstr.IndexOf("/")>0)
{
matrix[i,j] = Convert.ToDouble(tempstr.Substring(0,1))/Convert.ToDouble(tempstr.Substring(tempstr.Length-1,1));
}
else
matrix[i,j]=Convert.ToDouble(tempstr);
}
}
catch(Exception err)
{
MessageBox.Show(err.ToString());
}
}
}
//例子数据
private void button2_Click(object sender, System.EventArgs e)
{
switch(this.Stepcount)
{
case 0:
this.textBox1.Text = "费用,名气,导师,课题,个人兴趣";
this.textBox2.Text = "清华,北大,北航";
break;
case 1:
string[,] temparr = {{"1","2","7","5","5"},{"1/2","1","4","3","3"},{"1/7","1/4","1","1/2","1/3"},{"1/5","1/3","2","1","1"},{"1/5","1/3","3","1","1"}};
foreach(Control tempC in this.groupBox1.Controls)
{
try
{
if(tempC is TextBox)
{
string tempstr = tempC.Text.ToString().Trim();
int i = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-2,1));
int j = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-1,1));
tempC.Text = temparr[i,j];
}
}
catch(Exception err)
{
MessageBox.Show(err.ToString());
}
}
break;
case 2:
string[,] temparr1 = {{"1","1/5","1/8"},{"5","1","1/3"},{"8","3","1"}};
foreach(Control tempC in this.groupBox1.Controls)
{
try
{
if(tempC is TextBox)
{
string tempstr = tempC.Text.ToString().Trim();
int i = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-2,1));
int j = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-1,1));
tempC.Text = temparr1[i,j];
}
}
catch(Exception err)
{
MessageBox.Show(err.ToString());
}
}
break;
case 3:
string[,] temparr2 = {{"1","2","5"},{"1/2","1","2"},{"1/5","1/2","1"}};
foreach(Control tempC in this.groupBox1.Controls)
{
try
{
if(tempC is TextBox)
{
string tempstr = tempC.Text.ToString().Trim();
int i = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-2,1));
int j = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-1,1));
tempC.Text = temparr2[i,j];
}
}
catch(Exception err)
{
MessageBox.Show(err.ToString());
}
}
break;
case 4:
string[,] temparr3 = {{"1","1","3"},{"1","1","3"},{"1/3","1/3","1"}};
foreach(Control tempC in this.groupBox1.Controls)
{
try
{
if(tempC is TextBox)
{
string tempstr = tempC.Text.ToString().Trim();
int i = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-2,1));
int j = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-1,1));
tempC.Text = temparr3[i,j];
}
}
catch(Exception err)
{
MessageBox.Show(err.ToString());
}
}
break;
case 5:
string[,] temparr4 = {{"1","3","4"},{"1/3","1","1"},{"1/4","1","1"}};
foreach(Control tempC in this.groupBox1.Controls)
{
try
{
if(tempC is TextBox)
{
string tempstr = tempC.Text.ToString().Trim();
int i = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-2,1));
int j = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-1,1));
tempC.Text = temparr4[i,j];
}
}
catch(Exception err)
{
MessageBox.Show(err.ToString());
}
}
break;
case 6:
string[,] temparr5 = {{"1","1","1/4"},{"1","1","1/4"},{"4","4","1"}};
foreach(Control tempC in this.groupBox1.Controls)
{
try
{
if(tempC is TextBox)
{
string tempstr = tempC.Text.ToString().Trim();
int i = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-2,1));
int j = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-1,1));
tempC.Text = temparr5[i,j];
}
}
catch(Exception err)
{
MessageBox.Show(err.ToString());
}
}
break;
default:
break;
}
}
private void button1_Click(object sender, System.EventArgs e)
{
if(this.button1.Text=="计算结果")
{
this.vieworder();
return;
}
if(this.Stepcount == 0)
{
this.InitValue();
this.Initextbox(this.LenA,this.zhuze);
this.Stepcount++;
return;
}
if(this.Stepcount == 1)
{
foreach(Control tempC in this.groupBox1.Controls)//录入数据
{
try
{
if(tempC is TextBox)
{
string tempstr = tempC.Text.ToString().Trim();
if(tempstr == "")
{
MessageBox.Show("有文本框没有填数据！");
return;
}
int i = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-2,1));
int j = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-1,1));
if(tempstr.IndexOf("/")>0)
{
this.zhuzematrix[i,j] = Convert.ToDouble(tempstr.Substring(0,1))/Convert.ToDouble(tempstr.Substring(tempstr.Length-1,1));
}
else
this.zhuzematrix[i,j]=Convert.ToDouble(tempstr);
}
}
catch(Exception err)
{
MessageBox.Show(err.ToString());
}
}//foreach
//计算Ｗ
for(int i=0;i<LenA;i++)
this.W[i]=1;
for(int j=0;j<LenA;j++)
{
for(int i=0;i<LenA;i++)
this.W[j]*=this.zhuzematrix[j,i];
//
//W[j]=Math.Pow(W[j],1/LenA);
W[j]=Math.Exp(Math.Log(W[j])/LenA);
}
double Tt = 0;
for(int i=0;i<LenA;i++)
Tt+=W[i];
for(int i=0;i<LenA;i++)
W[i]=W[i]/Tt;
this.lamda = 0;
for(int j=0;j<LenA;j++)
{
for(int i=0;i<LenA;i++)
this.lamda += this.zhuzematrix[j,i]*W[i]/W[j];
}
this.lamda /=LenA;
//MessageBox.Show(this.lamda.ToString());
if(((this.lamda-LenA)/(LenA-1)) > RI[LenA]*0.1)
{
MessageBox.Show("不符合一致性！");
return;
}
this.Initextbox(this.LenB,this.fangan);
//this.mytextboxclear();
this.label5.Text = "请输入方案层相对准则层 "+this.zhuze[Stepcount-1]+" 的判别矩阵";
this.Stepcount++;
if(this.Stepcount==this.LenA+2)
{
this.button1.Enabled = false;
this.button2.Visible = false;
}
return;
}//结束对第一步1的特殊处理
foreach(Control tempC in this.groupBox1.Controls)//录入数据
{
try
{
if(tempC is TextBox)
{
string tempstr = tempC.Text.ToString().Trim();
if(tempstr == "")
{
MessageBox.Show("有文本框没有填数据！");
return;
}
int i = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-2,1));
int j = Convert.ToInt32(tempC.Name.ToString().Substring(tempC.Name.ToString().Length-1,1));
if(tempstr.IndexOf("/")>0)
{
this.fanganmatrix[this.Stepcount-2][i,j] = Convert.ToDouble(tempstr.Substring(0,1))/Convert.ToDouble(tempstr.Substring(tempstr.Length-1,1));
}
else
this.fanganmatrix[this.Stepcount-2][i,j]=Convert.ToDouble(tempstr);
}
}
catch(Exception err)
{
MessageBox.Show(err.ToString());
}
}//foreach
//计算Ｗ[stepcount]
int k = this.Stepcount -2;
if(k+1 == this.LenA)
this.label5.Text = "计算结果!";
else
this.label5.Text = "请输入方案层相对准则层 "+this.zhuze[k+1]+" 的判别矩阵";
for(int i=0;i<LenB;i++)
this.TW[k,i]=1;
for(int j=0;j<LenB;j++)
{
for(int i=0;i<LenB;i++)
this.TW[k,j]*=this.fanganmatrix[k][j,i];
//TW[k,j]=Math.Pow(TW[k,j],1/LenB);
TW[k,j] = Math.Exp(Math.Log(TW[k,j])/LenB);
}
double Ttt = 0;
for(int i=0;i<LenB;i++)
Ttt+=TW[k,i];
for(int i=0;i<LenB;i++)
TW[k,i]=TW[k,i]/Ttt;
this.Tlamda[k] = 0;
for(int j=0;j<LenB;j++)
{
for(int i=0;i<LenB;i++)
this.Tlamda[k] += this.fanganmatrix[k][j,i]*TW[k,i]/TW[k,j];
}
this.Tlamda[k] /=LenB;
//MessageBox.Show(this.Tlamda[k].ToString());
if(((this.Tlamda[k]-LenB)/(LenB-1)) > RI[LenB])
{
MessageBox.Show("不符合一致性！");
return;
}
//this.Initextbox(this.LenB,this.fangan);
this.mytextboxclear();
this.Stepcount++;
if(this.Stepcount==this.LenA+2)
{
this.button1.Text = "计算结果";
this.groupBox1.Controls.Clear();
//this.button2.Visible = false;
}
}
private void textBox1_TextChanged(object sender, System.EventArgs e)
{
}
}
}
流水兄，代码可以用 [code] 标签括起来：）
改过来了~~还是这样不错~
多谢谢天魔兄~
你好，最近在学AHP方面的知识，看到你这篇博文写得不错哎，但是上面的一些配图好像都失效了，对了，怎么联系你 啊