摘要
在椭球等高分布情形下给出了增长曲线模型中协差阵的最小模估计 。
Let Y=X 1BX′ 2+Uε be a growth curve model,where ε=( (1) , (2) ,…, (s) )′is a random matrix,its components are independent and have the same distribution of EC p(0.∑.).In this paper,for any given C=C′≠0,we give the MINQE(U,I)of tr(C∑)and the n.s.condition for the MINQE(U,I) to be the UMVIQUE.Moreover,we obtain the n.s.condtion for tr(C∑)'s UMVIQUE to exist.
基金
上饶师专科研基金资助课题
