www.pudn.com > jnntbeta0.2f.zip > nn.~jav
import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.io.*;
import java.net.*;
import java.util.Properties;
public class nn extends Applet {
Choice netChoice;//网络模型选择
Choice inNumChoice;//输入接点选择
Choice hideNumChoice;//隐含接点选择
Choice outNumChoice; //输出接点选择
Checkbox chkbox_save;
int task;
BpNet bpnet;
RbfNet rbfnet;
boolean clear;
int row;
int left;
int bottom;
int top;
double p1[][];//训练样本集输入
double t1[][];//训练样本集输出
double p2[][];//模拟数据输入
int inNum;
int hideNum;
int outNum;
int sampleNum;
int simNum;
PrintStream ps;
int epochs;
TextArea txtarea;
public void init() {
left=50;
top=80;
bottom=300;
clear=false;
row=0;
epochs=60000;//学习步长（可调）
setLayout(new BorderLayout());
Panel topPanel=new Panel();
Panel bottomPanel=new Panel();
netChoice=new Choice();
netChoice.addItem("BP network");
netChoice.addItem("LBG clustering");
netChoice.addItem("RBF network");
netChoice.addItemListener(new ItemListener(){
public void itemStateChanged (ItemEvent event){
repaint();
}
});
topPanel.add(netChoice);
Label lab_inNum=new Label("输入节点数:");
topPanel.add(lab_inNum);
inNumChoice=new Choice();
for (int i=1;i<10;i++)
inNumChoice.addItem(String.valueOf(i));
topPanel.add(inNumChoice);
Label lab_hideNum=new Label("隐含节点数:");
topPanel.add(lab_hideNum);
hideNumChoice=new Choice();
for (int i=1;i<10;i++)
hideNumChoice.addItem(String.valueOf(i));
hideNumChoice.select("3");
topPanel.add(hideNumChoice);
Label lab_outNum=new Label("输出节点数:");
topPanel.add(lab_outNum);
outNumChoice=new Choice();
for (int i=1;i<20;i++)
outNumChoice.addItem(String.valueOf(i));
topPanel.add(outNumChoice);
Button button_load=new Button("LoadData");
button_load.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent event){
task=10;
repaint();
}
});
topPanel.add(button_load);
Button button_train=new Button("Train");
button_train.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent event){
task=1;
repaint();
}
});
topPanel.add(button_train);
Button button_sim=new Button("Simulation");
button_sim.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent event){
task=2;
repaint();
}
});
topPanel.add(button_sim);
Button printButton=new Button("print...");
printButton.setForeground(Color.black);
//p.add(printButton);
printButton.addActionListener(new ActionListener(){
public void actionPerformed (ActionEvent event){
printComponents(nn.this);
}
});
topPanel.add(printButton);
chkbox_save=new Checkbox("save data");
// bottomPanel.add(chkbox_save);
add("North",topPanel);
txtarea=new TextArea(12,105);
bottomPanel.add(txtarea);
add("South", bottomPanel);
}
public void paint(Graphics g){
setBackground(Color.white);
switch (task)
{
case 1:if (netChoice.getSelectedItem()=="BP network")
drawBpTrain(g);
else if (netChoice.getSelectedItem()=="LBG clustering")
drawLBG(g);
else if (netChoice.getSelectedItem()=="RBF network")
drawRbfTrain(g);
break;
case 2:if (netChoice.getSelectedItem()=="BP network")
drawBpSim(g);
else if (netChoice.getSelectedItem()=="RBF network")
drawRbfSim(g);
break;
case 10:loadData(g);
break;
}//end switch
task=0;
}
public void drawBpTrain(Graphics g){
int time=1000;
double etime=1000.0;
//g.drawString(netChoice.getSelectedItem(),300,300);
// double p1[][]={{0.1},{0.2},{0.3},{0.4},{0.5}};
// double t1[][]={{0.12},{0.22},{0.32},{0.42},{0.52}};
bpnet=new BpNet(Integer.parseInt(inNumChoice.getSelectedItem()),Integer.parseInt(hideNumChoice.getSelectedItem()),Integer.parseInt(outNumChoice.getSelectedItem()));
//bpnet=new BpNet(2,3,1);
//绘制误差曲线坐标
g.setColor(getBackground());
g.fillRect(0,0,left,bottom);
g.setColor(getForeground());
g.drawLine(left,bottom,left+1000,bottom);
g.drawLine(left,bottom,left,0);
for (int i=0;i10)
{
row=0;
cleartext(g);
}
t2=bpnet.sim(p21);
row++;
//g.drawString("inputValue:",left,bottom+20+row*20);
txtarea.appendText("inputvalue:\n");
for(int i=0;i10)
{
row=0;
cleartext(g);
}
t2=rbfnet.sim(p21);
row++;
//g.drawString("inputValue:",left,bottom+20+row*20);
txtarea.appendText("inputvalue:\n");
for(int i=0;i0)
//g.drawString(",",left+10+j*50,top+20*i);
txtarea.appendText(",");
//g.drawString(String.valueOf(p1[i][j]),left+15+j*50,top+20*i);
txtarea.appendText(String.valueOf(p1[i][j]));
}
//g.drawString("}",left+50*inNum+25,top+20*i);
txtarea.appendText("}");
//g.drawString(String.valueOf(lbg.indext[i]),left+40+50*inNum,top+20*i);
txtarea.appendText(String.valueOf(lbg.indext[i])+"\n");
}//end for i
}
public void loadData(Graphics g){//读取学习数据
//Frame f=new Frame("file open");
//FileDialog fd=new FileDialog(f,"File Open");
//fd.show();
clearall(g);
row=0;
String str_p1="";
String str_t1="";
String str_p2="";
try
{URL filedata=null;
DataInputStream dis=null;
//System.out.println(getCodeBase()+"nndata.txt");
filedata=new URL(getCodeBase()+"nndata.txt");
//filedata=new URL(getCodeBase()+fd.getFile());
dis=new DataInputStream(filedata.openStream());
String line=dis.readLine();
row++;
simNum=1;
while(line!=null)
{ //System.out.println(line);
if (line.indexOf("inNum:")>=0)
inNum=Integer.parseInt(line.substring(line.indexOf("inNum:")+6)); //得到输入接点数
if (line.indexOf("hideNum:")>=0)
hideNum=Integer.parseInt(line.substring(line.indexOf("hideNum:")+8)); //得到隐含接点数
if (line.indexOf("outNum:")>=0)
outNum=Integer.parseInt(line.substring(line.indexOf("outNum:")+7)); //得到输出接点数
if (line.indexOf("sampleNum:")>=0)
sampleNum=Integer.parseInt(line.substring(line.indexOf("sampleNum:")+10)); //得到学习样本数
if (line.indexOf("simNum:")>=0)
simNum=Integer.parseInt(line.substring(line.indexOf("simNum:")+7)); //得到仿真样本数
if (line.indexOf("p1:")>=0)
str_p1+=line.substring(line.indexOf("p1:")+3);
if (line.indexOf("t1:")>=0)
str_t1+=line.substring(line.indexOf("t1:")+3);
if (line.indexOf("p2:")>=0)
str_p2+=line.substring(line.indexOf("p2:")+3);
//cleartext(g);
//g.drawString(line,left,bottom+20+row*20);
txtarea.appendText(line+"\n");
row++;
line=dis.readLine();
}//end while
inNumChoice.select(String.valueOf(inNum));
hideNumChoice.select(String.valueOf(hideNum));
outNumChoice.select(String.valueOf(outNum));
p1=new double[sampleNum][inNum];
t1=new double[sampleNum][outNum];
p2=new double[simNum][inNum];
p1=readarray(sampleNum,inNum,str_p1); //读取输入样本矩阵
System.out.println(str_p1);
//for(int i=0;i