A SIMPLE ALTERNATIVE TO GENERALIZED PROCRUSTES ANALYSIS: APPLICATION TO SENSORY PROFILING DATA |
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Authors: | JOACHIM KUNERT EL MOSTAFA QANNARI |
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Affiliation: | Fachbereich Statistik Universitat Dortmund D 44 221 Dortmund, Germany;ENITIAA/INRA - Unitéde Statistigue Appliquée àla Caractérisation des Aliments Rue de la Géraudiere B. P. 82 225 44322 Nantes cedex 03 - France |
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Abstract: | A statistical method for analyzing sensory profiling data obtained by means of fixed vocabulary or free choice profiling is discussed. The most interesting feature of this method is that it involves only simple statistical treatment and can therefore be performed using standard software packages. The outcomes of this method are compared to those of Generalized Procrustes Analysis on the basis of two data sets obtained, respectively, by means of fixed vocabulary and free choice profiling. A significance test is also discussed in order to assess whether the overall configuration of the products is meaningful. This significance test is based upon a simulation study involving the permutation procedure. |
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