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Construction of Resolvable Spatial Row-Column Designs
E. R. Williams, J. A. John and D. Whitaker
Vol. 62, No. 1 (Mar., 2006), pp. 103-108
Published by: International Biometric Society
Stable URL: http://www.jstor.org/stable/3695710
Page Count: 6
You can always find the topics here!Topics: Design efficiency, Spatial models, Matrices, Parametric models, Statistical models, Two dimensional modeling, Modeling, Statistical variance, Biometrics, Statistics
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Resolvable row-column designs are widely used in field trials to control variation and improve the precision of treatment comparisons. Further gains can often be made by using a spatial model or a combination of spatial and incomplete blocking components. Martin, Eccleston, and Gleeson (1993, Journal of Statistical Planning and Inference 34, 433-450) presented some general principles for the construction of robust spatial block designs which were addressed by spatial designs based on the linear variance (LV) model. In this article we define the two-dimensional form of the LV model and investigate extensions of the Martin et al. principles for the construction of resolvable spatial row-column designs. The computer construction of efficient spatial designs is discussed and some comparisons made with designs constructed assuming an autoregressive variance structure.
Biometrics © 2006 International Biometric Society