bpdlg.cpp

神经网络中bp网络的实现 供大家参考

// BPDlg.cpp : implementation file
//

#include "stdafx.h"
#include "BP.h"
#include "BPDlg.h"
#include "BpNetwork.h"
#include "matlib.h"
#include "time.h"
#include "fstream.h"
#include "stdlib.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CBPDlg dialog

CBPDlg::CBPDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CBPDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CBPDlg)
	m_input = 0;
	m_hidden = 0;
	m_output = 0;
	m_sample = 0;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	m_input=0;
	m_hidden=0;
	m_output=0;
	bpNet=0;
}

void CBPDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CBPDlg)
	DDX_Text(pDX, IDC_INPUT, m_input);
	DDX_Text(pDX, IDC_HIDDEN, m_hidden);
	DDX_Text(pDX, IDC_OUTPUT, m_output);
	DDX_Text(pDX, IDC_SAMPLE, m_sample);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CBPDlg, CDialog)
	//{{AFX_MSG_MAP(CBPDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_LEARN, OnLearn)
	ON_BN_CLICKED(IDC_STOP, OnStop)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CBPDlg message handlers

BOOL CBPDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CBPDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CBPDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CBPDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CBPDlg::OnLearn() 
{
	// TODO: Add your control notification handler code here
	unsigned int i,j;
	UpdateData();
	m_sampleInput=zeros(m_input,m_sample);
	m_sampleTarget=zeros(m_output,m_sample);
	//产生随机样本
	ofstream oSample("c:\\样本.txt",ios::out);

	oSample<<"样本输入值：\n";
	for(i=1;i<=m_sample;i++)
		for(j=1;j<=m_input;j++)
		{
			m_sampleInput.r(j,i)=-1;
		}
	for(i=1;i<=m_input;i++)
	{
		for(j=1;j<=m_sample;j++)
		{
			oSample<<m_sampleInput.r(i,j)<<"  ";
		}
		oSample<<"\n";
	}

	oSample<<"样本目标值：\n";
	for(i=1;i<=m_sample;i++)
		for(j=1;j<=m_output;j++)
		{
			m_sampleTarget.r(j,i)=1;
		}

	for(i=1;i<=m_output;i++)
	{
		for(j=1;j<=m_sample;j++)
		{
			oSample<<m_sampleTarget.r(i,j)<<"  ";
		}
		oSample<<"\n";
	}
	bpNet=new CBpNetwork();
	bpNet->create(m_sampleInput,m_sampleTarget,m_input,m_hidden,m_output);
	bpNet->learn();
}

void CBPDlg::OnStop() 
{
	// TODO: Add your control notification handler code here
	if(bpNet!=NULL)
	{
		bpNet->stop();
		delete (bpNet);
	}
	return;
}