histogram.h

经网络提出了一种基于蚁群聚类算法的径向基神经网络. 利用蚁群算法的并行寻优特征和挥发系数方法的自适应更改信息量的能力,并以球面聚类的方式确定了径向基神经网络中基函数的位置, 同时通过比较隐层神经元的相

/* $Id: histogram.h,v 1.1 2006-08-09 15:20:54 jonathan Exp $
* Jonathan Ledlie, Harvard University.
* Copyright 2006.  All rights reserved.
*/

#ifndef HISTOGRAM_H
#define HISTOGRAM_H

#include <math.h>
#include <iostream>
#include <vector>
#include <map>
#include "error.h"
using namespace::std;

class Histogram 
{
	friend ostream& operator << (ostream& os, Histogram* h);
private:
	int size;
	double sum;
	// TODO some kind of sorted list would be better
	vector<double> values;
	map<double,int> value2count;
	void add (double value, int count, bool doCoerce);
	double findBucket (double value);

public:
	const double bucketWidth;
	Histogram (double bw) : bucketWidth(bw) { size = 0; sum = 0;}
	void add (Histogram *);
	void add (double value, int count) { add (value, count, true); }
	void add (double value) { add (value, 1); }
	void add (int value) { add ((double)value,1); }
	void add (int value, int count) { add ((double)value,count); }
	void clear () { value2count.clear(); size = 0; values.clear(); }
	double mean ();
	double percentile (double pct);
};

#endif