摘要
对于一元非线性回归计算,各种著作中均给出不同的线型及其相应的公式和线性化后的方程,供试验研究和工程、非工程计算中使用.S曲线的使用较为广泛,但它是一条不通过坐标原点的曲线,这与实际有出入,且尚欠合理.作者建议一条通过原点的S曲线,使之更符合实际.
S-curve is wildly used to build the non-linear regression equation for the data analysis in experimental research and engineering calculation. But some unreasonable results are obtained by using S-cuive due to its common characteristic that does not pass the origin of coordinates. A new S-curve, which passes the origin of coordinates, is suggested in this paper.And the method of the estimation of the parameters is provided.
出处
《数学的实践与认识》
CSCD
北大核心
2005年第6期202-205,共4页
Mathematics in Practice and Theory
关键词
S-曲线
非线性回归
坐标原点
经济损失
S-curve
non-linear regression equation
the origin of coordinates
