数学物理学报 ›› 1999, Vol. 19 ›› Issue (5): 486-492.

• 论文 • 上一篇    下一篇

生长曲线模型参数估计B的几个相对效率

  

  1. (雁北师范学院数学系 大同 037000)

  • 出版日期:1999-12-05 发布日期:1999-12-05

Some Relative Efficiencies of B in Growth Curve Model

  1. (Yanbei Teachers Collge, Datong 037000)

  • Online:1999-12-05 Published:1999-12-05

摘要:

对于生长曲线模型

Y q×n = A q×m B m×k C k×n + eq×n ,

E(e)=0, Cov(e)=Vn×n×Σq×q.

该文在1中定义了B的三种相对效率,即:

Δp1(B|B*)=[tr((CovB)·(Cov -1B*))p]1/p

Δp2(B|B*)=[tr(CovB - CovB#)p]1/p

Δp3(μ|μ#)=[tr(Covμ- Covμ*)p]1/p

其中,B*=(A′Σ-1A)-1 A′Σ-1YV-1C′(CV-1C′)-1, B=(A′Σ-1A)-1 A′Σ-1YC′(CC′)-1,

μ=ABC,μ*=AB*C.在2,3,4中分别给出了它们的上界,并给予了证明.

关键词: 生长曲线模型, 估计, 相对效率.

Abstract:

For the general growth curve linear model:

Y q×n = A q×m B m×k C k×n + eq×n ,

where E(e)=0,and Cov(e)=Vn×n×Σq×q, three relative efficiencies of B:

 Δp1(B|B*)=[tr((CovB)·(Cov -1B*))p]1/p

Δp2(B|B*)=[tr(CovB - CovB#)p]1/p

Δp3(μ|μ#)=[tr(Covμ- Covμ*)p]1/p

are proposed and their upper bounds are given, where p≥1,μ=ABC,μ*=AB*C.

Key words:  Growth curve model, Estimate, Relative efficiency.

中图分类号: 

  • 62H12