Exact Calculation of Integrated Prediction Variance for Response Surface Designs on Cuboidal and Spherical Regions

• Autores: Wayner R. Wesley, James R. Simpson, Peter A. Parker, Joseph J. Pignatiello Jr.
• Localización: Journal of quality technology: A quarterly journal of methods applications and related topics, ISSN 0022-4065, Vol. 41, Nº. 2, 2009, págs. 165-180
• Idioma: inglés
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• Resumen

  • The use of IV-optimality criterion is limited by a lack of available computer code and difficulties in coding because of the integration required over the specified design region. A method is presented here for computing the IV-optimality criterion for selected response surface designs. The pseudo-code for the computer program is also given. The study investigates both spherical and cuboidal regions of interest, and an analytical approach is outlined for computing the IV-optimality criterion for second-order split-plot designs. Some comparisons of second-order response surface designs are shown for completely randomized designs and split-plot designs.