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Article: The idle column method: design construction, properties and comparisons.
- Article from:
- Technometrics
- Article date:
- November 1, 2002
- Author:
CopyrightCOPYRIGHT 2002 American Statistical Association. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Taguchi's idle column method for constructing arrays is investigated and generalized. A general construction method is proposed via a necessary and sufficient condition on two-level orthogonal arrays to which the method is applicable. A method is developed for identifying the idle column and pairs of columns in the arrays. Mixed two- and three-level idle column arrays with 64 or fewer runs are tabulated. Some guidelines are offered on when the idle column arrays should be used and when they should be replaced by orthogonal main-effect plans or D-optimal designs.
KEY WORDS: D-optimal design; Hadamard matrix; Idle column array; Orthogonal array; Orthogonal ...
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