In this article we use a new methodology, based on algebraic strata, to generate the class of all the orthogonal arrays of given size and strength. From this class we extract all the non isomorphic orthogonal arrays. Then, using all these non isomorphic orthogonal arrays, we suggest a method based on the inequivalent matrices permutations testing procedures Basso et al. (2004) in order to obtain separate permutation tests for the effects in unreplicated mixed level fractional factorial designs. In order to validate the proposed method we perform a Monte Carlo simulation study and find out that the permutation tests appear to be a valid solution for testing effects, in particular when the usual normality assumptions cannot be justified.
Construction and nonparametric testing of orthogonal arrays through algebraic strata and inequivalent permutation matrices / Arboretti Giancristofaro, R.; Fontana, Roberto; Ragazzi, S.. - In: COMMUNICATIONS IN STATISTICS. THEORY AND METHODS. - ISSN 0361-0926. - 41:16-17(2012), pp. 3162-3178. [10.1080/03610926.2011.579380]
Titolo: | Construction and nonparametric testing of orthogonal arrays through algebraic strata and inequivalent permutation matrices. | |
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Data di pubblicazione: | 2012 | |
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Digital Object Identifier (DOI): | http://dx.doi.org/10.1080/03610926.2011.579380 | |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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http://hdl.handle.net/11583/2405654