Indicator function and complex coding for mixed fractional factorial designs

By Giovanni Pistone, M. Rogantin. 2007

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In a general fractional factorial design, the n levels of a factor are coded by the nth roots of the unity. This device allows a full generalization to mixed-level designs of the theory of the polynomial indicator function which has already been introduced for two-level designs in a joint paper with Fontana. The properties of orthogonal arrays and regular fractions are discussed.

Subfields: Computational Theory and Mathematics, Electrical and Electronic Engineering, Management Science and Operations Research

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