Evaluation of inequivalent projections of Hadamard matrices of order 24

H. Evangelaras, S. Georgiou and C. Koukouvinos

Metrika: International Journal for Theoretical and Applied Statistics, 2004, vol. 59, issue 1, 73 pages

Abstract: Screening designs are useful for situations where a large number of factors (q) is examined but only few (k) of these are expected to be important. It is of practical interest for a given k to know all the inequivalent projections of the design into the k dimensions. In this paper we give all the (combinatorially) inequivalent projections of inequivalent Hadamard matrices of order 24 into k=3,4 and 5 dimensions, as well as their frequencies. Then, we sort these projections according to their generalized resolution, generalized aberration and centered L 2 -discrepancy measure of uniformity. Then, we study the hidden projection properties of these designs as they are introduced by Wang and Wu (1995). The hidden projection property suggests that complex aliasing allows some interactions to be estimated without making additional runs. Copyright Springer-Verlag 2004

Keywords: Hadamard matrices; Inequivalent projections; Screening designs; Factorial designs; Generalized resolution; Generalized aberration; Generalized wordlength pattern; Uniformity; Hidden projection; D-efficiency; D s -efficiency; Primary 62K15; Secondary 05B20 (search for similar items in EconPapers)
Date: 2004
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Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:spr:metrik:v:59:y:2004:i:1:p:51-73

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DOI: 10.1007/s001840300271

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