halflogarithmcorrelation.cpp

这是一元线性回归的源代码,用来分析自变量取值与因变量取值的内在联系,这里的自变量是确定性的,因变量是随机的.

//HalfLogarithmCorrelation.cpp	半对数数据相关

#include <iostream>			//模板类输入输出流iostream标准头文件
#include <valarray>			//模板类valarray的标准头文件
#include <Statistic.h>		//数据处理与回归分析头文件
using namespace std;		//名字空间

void main(void)
{	
	long double t(10);
	valarray<long double> a(7);

	long double x[12] = 
	{
		0.96,0.94,0.92,0.90,0.88,0.86,
		0.84,0.82,0.80,0.78,0.76,0.74
	};

	long double y[12] = 
	{
		558.0,313.0,174.0,97.0,55.8,31.3,
		17.4, 9.70, 5.58, 3.13,1.74,1.00
	};
	 
	valarray<long double> xx(x, 12);
	valarray<long double> yy(y, 12);

    HalfLogarithmCorrelation(xx, yy, t, a);

	printf("\n");
    printf("a=%13.7e   b=%13.7e  \n",a[1],a[0]);
    printf("\n");
    printf("q=%13.7e   s=%13.7e  \n",a[2],a[3]);
    printf("\n");
    printf("umax=%13.7e  umin=%13.7e  u=%13.7e \n",
                           a[4],a[5],a[6]);
    printf("\n");
}