On finding mixed orthogonal arrays of strength 2 with many 2-level factors

Dean DeCock and John Stufken

Statistics & Probability Letters, 2000, vol. 50, issue 4, 383-388

Abstract: We describe a method for finding mixed orthogonal arrays of strength 2 with a large number of 2-level factors. The method starts with an orthogonal array of strength 2, possibly tight, that contains mostly 2-level factors. By a computer search of this starting array, we attempt to find as large a number of 2-level factors as possible that can be used in a new orthogonal array of strength 2 containing one additional factor at more than two levels. The method produces new orthogonal arrays for some parameters, and matches the best-known arrays for others. It is especially useful for finding arrays with one or two factors at more than two levels.

Keywords: Asymmetrical; orthogonal; array; Hadamard; matrix; Hadamard; design; Plackett-Burman; design; Search; algorithm (search for similar items in EconPapers)
Date: 2000
References: View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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