摘要
使用一个B样条S估计方法来研究变系数模型,得到了系数函数估计的简约表达式和一个基于S估计的广义交叉核实变量选择准则(GCV),设计了一个迭代算法用来寻找最优的S估计.通过Monte Carlo实验证明,该方法是稳健可靠的.
The B splines with S-estimation method is used for discussing the varying coefficient models. By employing this method, a simple estimation form of the coefficient functions is obtained and a generalized cross validation (GCV) criterion is derived for the S-estimation. Furthermore, an iterative algorithm is provided for searching the optimal S estimation. It is shown that this method is robust and reliable by means of Monte Carlo simulation.
出处
《武汉大学学报(理学版)》
CAS
CSCD
北大核心
2011年第2期100-104,共5页
Journal of Wuhan University:Natural Science Edition
基金
教育部重点项目(109140)
西南财经大学211三期特色项目(211DT03)