摘要
文[1]给出了一种曲线拟合的波浪增长曲线模型：它适用于不断增长又有微小波动的社会经济现象．而对那些波动幅度大，相关性又较弱的社会经济现象，它的效果就不明显．本文给出一种适用范围更广的波浪曲线模型这里c（x）、ω（x）均是变量．我们称之为控制因子．分别用于控制波动的振幅与周期．一般可取成直线、抛物线、指数曲线、对数曲线等．用此模型对新疆1980年至1993年大畜产量进行主成分分析，结果较好．
In artce [1] .a regressive modcl Y=a +bx+csin(ωx+),which analyses the economic phenomema withundelate increasing was introduced. It gave us a result which is better than linear regression and the compertzcurve. But it has a stric reguisition to the undulation,It's effect will not be apparent when the undulat range isgreeater and dependency is POOrer. This paper advance a new undulate increasing mathematcal model:where c(x),ω(x ) are the control variable controling the range of undulation,usually they can be linear.parabala.logarithmic and analyses the date of animal's output from 1980 to 1993 A. D in Xinjiang. This result is satisfactory.
出处
《新疆大学学报（自然科学版）》
CAS
1997年第3期40-42,共3页
Journal of Xinjiang University(Natural Science Edition)
