// DTID3.h: interface for the CDTID3 class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_DTID3_H__80362FE1_40FD_11DB_B6E2_444553540000__INCLUDED_)
#define AFX_DTID3_H__80362FE1_40FD_11DB_B6E2_444553540000__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include <math.h>

typedef struct Child
{
	char value[8];
	struct DecisionTree *node;
}ChildNode;

typedef struct DecisionTree
{
	char Title[10];
	int nChildCount;
	ChildNode *child;
}TreeNode;


class CDTID3  
{
public:
	CDTID3();
	virtual ~CDTID3();
public:
	int create_tree(ChildNode *child,char *rule,char *avail_att,char *valid,int tab_cnt);
	int Chuli(char *valid_2);
	int not_all_same(char *valid);
	int get_diff_att_types(char *valid,char **att_names,int att,int max_row);
	int find_att(char *avail_att,char *valid);
	int check_all_negative();
	int check_all_positive();
	void disaster(int i);
	
	void PrepareID3(char ***string,int height,int width,char **title);
	int M1,M2,M3,M4;


private:
	FILE * nfp;
	FILE * pfp;
	FILE * ofp;
	int rows;
	char ** title1;
	int attributes;
	char *** string1;
	
};

#endif // !defined(AFX_DTID3_H__80362FE1_40FD_11DB_B6E2_444553540000__INCLUDED_)