aggregates.cpp

关联分类算法采用贪心算法发现高质量分类规则

// AGGREGATES.cpp: implementation of the AGGREGATES class.
//
//////////////////////////////////////////////////////////////////////

#include "StdAfx.h"
#include "DESCRIPTION.h"
#include "AGGREGATES.h"

//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

AGGREGATES::AGGREGATES()
{
	m_nCls=2;
	m_Data=NULL;
}

AGGREGATES::~AGGREGATES()
{
	if(m_Data!=NULL)
	{
		for(int i=0;i<m_Descript.GetNumAttr();i++)
		{
			if(m_Data[i]!=NULL)
			{
				for(int j=0;j<m_Descript.GetNumValues(i);j++)
					delete m_Data[i][j];
			}
			delete m_Data[i];
		}
		delete m_Data;
	}
}

AGGREGATES::AGGREGATES(const AGGREGATES& aggr)
{
	m_nCls=2;
	m_Data=NULL;
	(*this)=aggr;
}

void AGGREGATES::operator=(const AGGREGATES& aggr)
{
	Initialize(aggr.m_Descript);
	for(int i=0;i<m_Descript.GetNumAttr();i++)
	{
		for(int j=0;j<m_Descript.GetNumValues(i);j++)
		{
			memcpy(m_Data[i][j],aggr.m_Data[i][j],sizeof(double)*m_nCls);
		}
	}
}

void AGGREGATES::Initialize(const DESCRIPTION& descript)
{	
	if(m_Data!=NULL)
	{
		for(int i=0;i<m_Descript.GetNumAttr();i++)
		{
			if(m_Data[i]!=NULL)
			{
				for(int j=0;j<m_Descript.GetNumValues(i);j++)
					delete m_Data[i][j];
			}
			delete m_Data[i];
		}
		delete m_Data;
	}
	
	m_Descript=descript;
	m_Data=new double**[m_Descript.GetNumAttr()];
	for(int i=0;i<m_Descript.GetNumAttr();i++)
	{
		m_Data[i]=new double*[m_Descript.GetNumValues(i)];
		for(int j=0;j<m_Descript.GetNumValues(i);j++)
		{
			m_Data[i][j]=new double[m_nCls];
			memset(m_Data[i][j],0,sizeof(double)*m_nCls);
		}
	}
}