readfile.cpp

一个聚类算法用K-mean处理后迭代

#include <iostream>
#include <CTIME>
#include <cmath>
#include <string>
#include <sstream>
#include <fstream>
#include <deque>
#include <vector>
#include "head.h"

using namespace std;
typedef vector<double>  instance;
//const int number_of_attribute=20;


void readfile(ifstream & in, deque <lable_instance> & d_list, int num_att, int num_instance)
// read a block of instances from file into deque
{
	string line;
	istringstream mystring;
	int i;
	
	instance tmp(num_att);
	
	lable_instance l_tmp;
	
	while( num_instance && getline( in, line) ) {
		mystring.str(line);
		if (line.size() ==0) continue;
		
		for(i=0; i<num_att; i++) {
			mystring>>tmp[i];
		}
		mystring>>l_tmp.lable;
		l_tmp.att=tmp;
		
		mystring.clear();
		
		d_list.push_back(l_tmp);
		num_instance--;
	}
			
	
}