/*************
Logistic?Regression（?logistic?回歸?）using?newton?gradient?descent

the?Data:from?UCI?datalib?named?“wpbc.data“（that?is?about?cancer?）

CopyRight?2015/3/24?owner?by?pengjie（彭杰）
All?Rights?Reserved

**************/

#include?“main.h“

int?main（）
{
	char?*file?=?“C:\\Users\\Administrator\\Desktop\\machine_learnning\\wpbc.data“;
	DataSample?*data?=?new?DataSample[sampleNum];
	double?*logisW?=?new?double[attriNum+1];
	
	if（?-1!=ReadData（?datafile?）?）
	{
		Logistic（?datalogisW?）;
	}

	for（int?i=0;i<（attriNum+1）;++i）
	{
		printf（“%f\t“logisW[i]）;
	}
	printf（“\n\n“）;

	int?correct?=?0;
	int?sum?=?0;
	for（int?i=trainNum;i	{
		++sum;
		bool?eva?=?Predict（data[i]logisW）;
		if（eva）
			++correct;
	}

	double?rp?=?double（correct）/sum;
	printf（“the?right?correction:?%f\n“rp）;

	delete?[]data;
	delete?[]logisW;

	return?0;
}

?屬性????????????大小?????日期????時間???名稱
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?????文件????????911??2015-03-24?18:34??logistic\main.cpp

?????文件???????4378??2015-03-24?18:37??logistic\main.h

?????文件??????44234??2015-03-24?15:00??logistic\wpbc.data

?????文件???????5671??2015-03-24?15:01??logistic\wpbc.names

?????目錄??????????0??2015-03-24?19:09??logistic

-----------?---------??----------?-----??----

????????????????55194????????????????????5