摘要
介绍了Richards增长曲线方程,而后对Richards增长曲线方程的参数进行研究.运用线性最小二乘法、双向差分误差平方和最小估计法和双向差分加权最小二乘估计法对其参数进行估计,从定量的角度研究了Richards增长曲线方程,为进一步的研究奠定了基础,最后将模型应用到传染病疫情实例中.
In this paper, the Richards growth Richards growth model direction difference and curve model is studied research . Finally, the curve model is introduced and parameters estimation of is studied with least square method, minimum error square estimation of the two the two direction difference weighted least square estimation. The Richards growth from the angle of quantification and the paper establishes the foundation to further model is applied in an example of infectious disease.
出处
《哈尔滨师范大学自然科学学报》
CAS
2015年第5期23-26,共4页
Natural Science Journal of Harbin Normal University
基金
黑龙江省自然科学基金项目(C201408)
关键词
Richards增长曲线
参数估计
最小二乘法
双向差分法
Richards growth curve model
parameters estimation
least square method
two directiondifference method
