apriori_mbdlg.cpp

Apriori算法实现

// Apriori_MBDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Apriori_MB.h"
#include "Apriori_MBDlg.h"

#include "Apriori.h"
#include "ItemDlg.h"
#include <iostream>
#include <fstream>
#include <string>
#include <sstream>
using namespace std;

#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()

/////////////////////////////////////////////////////////////////////////////
// CApriori_MBDlg dialog

CApriori_MBDlg::CApriori_MBDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CApriori_MBDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CApriori_MBDlg)
	m_score = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	//m_DBListBox.AddString(_T("1"));
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CApriori_MBDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CApriori_MBDlg)
	DDX_Control(pDX, IDC_LIST_DATABASE, m_DBListBox);
	DDX_Text(pDX, IDC_EDIT_SCORE, m_score);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CApriori_MBDlg, CDialog)
	//{{AFX_MSG_MAP(CApriori_MBDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_FINDITEMSET, OnFinditemset)
	ON_BN_CLICKED(IDC_ADDITEM, OnAdditem)
	ON_BN_CLICKED(IDC_DELETEITEM, OnDeleteitem)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CApriori_MBDlg message handlers

BOOL CApriori_MBDlg::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
//	m_DBListBox.AddString(_T("1 2 5 8"));
//	m_DBListBox.AddString(_T("1 3 5 7"));
	ifstream  input=ifstream("transction.txt");
	vector< vector<char> > transaction;
	if (input==0) //文件打开失败
	{
		AfxMessageBox("事务文件transction.txt不存在!");
	}
	else
	{
		while(input)
		{
			string  str;
			getline(input,str,'\n'); //得到一行事务项集
			if(str!="")//最后有一空行，所以在此用if消除
			{
				vector<char> cvec;
				for(int i=0;i<str.size();++i)
				{
					if (str[i]!=' ')
						cvec.push_back(str[i]);
				}
				m_DBListBox.AddString(str.c_str());
				m_transaction.push_back(cvec);
			}
		}
  }
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CApriori_MBDlg::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 CApriori_MBDlg::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 CApriori_MBDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CApriori_MBDlg::OnFinditemset() 
{
	// TODO: Add your control notification handler code here
	Apriori apriori;
	apriori.FindItemSet(m_transaction);
	m_freqresults=apriori.GetResults();
	m_score="";
	for (int i=0;i<m_freqresults.size();++i)
	{
		m_score+="含";//+(i+1)+个元素的频繁项集为:\r\n";
		stringstream ss;
		ss << i+1;
		m_score+=ss.str().c_str();
		m_score+="个元素的频繁项集为:\r\n";
		for (int j=0;j<m_freqresults[i].size();++j)
		{	for (int k=0;k<m_freqresults[i][j].size();++k)
			{
				//m_score" %d",m_freqresults[i][j][k]);
				stringstream ss;
				ss << m_freqresults[i][j][k];
				m_score+=ss.str().c_str();
				m_score+=" ";
		}
			m_score+="\r\n";
		}
			m_score+="\r\n";
	
	}
	UpdateData(FALSE);
}

void CApriori_MBDlg::OnAdditem() 
{
	// TODO: Add your control notification handler code here
	CItemDlg cItemdlg;

	if (cItemdlg.DoModal())
	{
		vector<char> cvec;
		//string str=cItemdlg.m_item.
		string str=cItemdlg.m_item.GetBuffer(cItemdlg.m_item.GetLength());
		if(str!="")
		{
			vector<char> cvec;
			for(int i=0;i<str.size();++i)
			{
				if (str[i]!=' ')
					cvec.push_back(str[i]);
			}
			m_DBListBox.AddString(str.c_str());
			m_transaction.push_back(cvec);
			}

	}
	UpdateData(FALSE);
}

void CApriori_MBDlg::OnDeleteitem() 
{
	// TODO: Add your control notification handler code here
	int index=m_DBListBox.GetCurSel();
	if (index!=-1)
	{
		
		CString str;
		m_DBListBox.GetText(index,str);
		vector<vector<char> >::iterator theIterator;
		vector<char>::iterator innerIterator;
		bool deleteIt=true;
		int i=0;
		for (theIterator=m_transaction.begin();theIterator!=m_transaction.end();++theIterator)
		{
			for (innerIterator=(*theIterator).begin(),i=0;innerIterator!=(*theIterator).end();++innerIterator)
			{
				while(str[i]==' ')
					++i;//跳过空格
				if( (*innerIterator) != str[i])
				{
					deleteIt=false;
					break;
				}
				++i;	
			}
		if(deleteIt)
		{
			m_transaction.erase(theIterator);
			break;
		}else{

			deleteIt=true;
		}
		}
		m_DBListBox.DeleteString(index);
	
		//////////////////////////////////////////////////////////////////////////
// 		m_score="";
// 		for (int m=0;m<m_transaction.size();++m)
// 		{
// 			for (int n=0;n<m_transaction[m].size();++n)
// 			{
// 				m_score+=m_transaction[m][n];
// 			}
// 			m_score+="\r\n";
// 		}
// 			UpdateData(FALSE);

	}else
	{
		AfxMessageBox("请选择一项删除!");
	}
}