摘要
本文讨论了一种带参量的多项式回归拟合。调节参量数值可使剩差平方和达到足够小,从而减省了所用的项数。通过变换又可导致指数函数曲线拟合。这对某些问题(尤其如热传导问题等)具有简化计算或求解的作用。
This paper studies a kind of regression fitting of polynomial with an addit- ional parameter. The sum of squares of surplus variance may be made sufficiently small by means of adjusting the value of the parameter, and therefore the terms of polynomial for regression fitting may be reduced. By some transformation, it may also lead to the curve fitting by exponential functions. This is often useful for simplifying the process of solving certain problems (especially the problems of thermal conduction).
出处
《河北工学院学报》
1991年第3期96-102,共7页
Journal of Hubei Polytechnic University
关键词
参胆
回归
拟合
指数函数
热传导
Regression fitting with additional parameter
Curve fitting byexponential functions
The value of the parameter
Thermal conduction
