On some DS-optimal designs in spherical regions |
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| Authors: | S Huda |
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| Institution: | Department of Statistics , King Saud University , Riyadh, 11451, Saudi ArabiaP.O. Box 2455 |
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| Abstract: | For polynomial regression over spherical regions the d-th order Ds-optimal designs for the λ-th order models are derived for 1 ≤ λ ≤ d ≤ 4. Efficiencies of these designs with respect to the λ-th order D-optimal designs are obtained. The effects of estimating addtional parameters due to an m-th order model (d ≥ m >>λ) on the efficiencies are investigated. |
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| Keywords: | D-efficiency optimal design polynomial regression rotatable design |
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