Efficient response-surface designs with unknown block sizes

Debusho, Legesse Kassa; Chibayambuya, Gamu

dc.contributor.author	Debusho, Legesse Kassa
dc.contributor.author	Chibayambuya, Gamu
dc.date.accessioned	2014-05-09T05:48:29Z
dc.date.available	2014-05-09T05:48:29Z
dc.date.issued	2013
dc.description.abstract	This paper focuses on the construction of D- and Ds-optimal designs for a secondorder response surface model when the block sizes are not fixed. Overviews of the Procedure OPTEX in SAS for the construction of these designs are given. With the BLOCK statement this procedure can produce optimal designs when the block sizes are fixed but for unknown block sizes it requires additional programming to generate the optimal designs for a given number of runs and number of blocks (see Atkinson, Donev and Tobias, 2007). An example about a pastry dough experiment (Goos and Jones, 2011) is used to demonstrate how to generate designs in such situations.	en_US
dc.description.librarian	am2014	en_US
dc.description.sponsorship	This research is supported by a grant from the National Research Foundation (NRF) through Competitive Support for Unrated Researchers Programme (Reference: SUR20110629000019843 and Grant No: 80407).	en_US
dc.description.uri	http://www.sastat.org.za/journal.htm	en_US
dc.identifier.citation	Debusho, LK & Chibayambuya, G 2013, 'Efficient response-surface designs with unknown block sizes', South African Statistical Journal, pp. 15-22.	en_US
dc.identifier.issn	0038-271X
dc.identifier.uri	http://hdl.handle.net/2263/39746
dc.language.iso	en	en_US
dc.publisher	South African Statistical Association	en_US
dc.rights	South African Statistical Association	en_US
dc.subject	Blocking	en_US
dc.subject	Block-orthogonal	en_US
dc.subject	D-optimality	en_US
dc.subject	Ds-optimality	en_US
dc.subject	Second-order response surface model	en_US
dc.title	Efficient response-surface designs with unknown block sizes	en_US
dc.type	Article	en_US