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On the characterization of nonegatively estimable linear combinations of variance components

 

作者: Thomas Mathew,  

 

期刊: Statistics  （Taylor Available online 1987）
卷期: Volume 18, issue 2  

页码: 227-236

 

ISSN:0233-1888

 

年代: 1987

 

DOI:10.1080/02331888708802011

 

出版商: Akademie-Verlag

 

关键词: 62J10;Nonnegative estimability;MINQUE (given Σ);MINQUE (Σ,NND);quadratic subspace;subspaces that preserve nonegative definiteness

 

数据来源: Taylor

 

摘要:

It is shown that, by a reparametrization, the problems of estimationg a linear combination of variance components can be reduced to that of estimating a single variance component. Such a reduction is used to obtain some characterizations of nonnegatively estimable linear combinations of varaince components. Characterization of nonnegative estimability using MINQUE is also discussed

 

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