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A comparison of equally spaced designs with different correlation structures in one and more dimensions |
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| Authors: | Agnes M. Herzberg S. Huda |
| Abstract: | Equally spaced designs are compared using the generalized variance as a measure of efficiency. Results for polynomial models are derived on the increased efficiency arising from increasing the number of design points when the regions are fixed and when the regions are expanded. The effects of dependence among the observations on these results are studied by considering a particular family of stationary correlated error structures. |
| Keywords: | Equally spaced designs polynomial regression stationary correlation structure generalized variance efficiency |