Fitting a Mixture Model to Three-Mode Three-Way Data with Categorical and Continuous Variables

Lynette A. Hunt and Kaye E. Basford

Journal of Classification, 1999, vol. 16, issue 2, 283-296

Abstract: The mixture likelihood approach to clustering is most often used with two-mode two-way data to cluster one of the modes (e.g., the entities) into homogeneous groups on the basis of the other mode (e.g., the attributes). In this case, the attributes can either be continuous or categorical. When the data set consists of a three-mode three-way array (e.g., attributes measured on entities in different situations), an analogous procedure is needed to enable the clustering of the entities (i.e., one of the modes) on the basis of both of the other modes simultaneously (i.e., the attributes measured in different situations). In this paper, it is shown that the finite mixture approach to clustering can be extended to analyze three-mode threeway data where some of the attributes are continuous and some are categorical. The methodology is illustrated by clustering the genotypes in a three-way soybean data set where various attributes were measured on genotypes grown in several environments. Copyright Springer-Verlag New York Inc. 1999

Keywords: Key words: Clustering; Finite mixture models; Mixed data., (search for similar items in EconPapers)
Date: 1999
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DOI: 10.1007/s003579900057

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