Optimality and efficiency of small chessboard designs for correlated errors

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• 作者：Nizam Uddin
• 关键词：Information matrix ; Optimal design ; Row– ; column design ; Universal optimality
• 刊名：Metrika
• 出版年：2008
• 出版时间：November, 2008
• 年：2008
• 卷：68
• 期：3
• 页码：343-350
• 全文大小：125.6 KB

文摘

Optimal p ¡Á q row–column designs are obtained via complete enumeration of all possible designs for two treatments in some fixed effects models with errors specified by a doubly geometric covariance structure. This is done, in part, by a computer search, for a finite set of sizes of the correlation coefficients and in cases where p and q are small enough to make such a search feasible.