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Properties of graphical regression models for multidimensional categorical data

Devin S. Johnson and Jennifer A. Hoeting

Statistics & Probability Letters, 2011, vol. 81, issue 10, 1471-1475

Abstract: We propose a two-component graphical chain model, the discrete regression distribution, where a set of discrete random variables is modeled as a response to a set of categorical and continuous covariates. The proposed model is useful for modeling a set of discrete variables measured at multiple sites along with a set of continuous and/or discrete covariates. The proposed model allows for joint examination of the dependence structure of the discrete response and observed covariates and also accommodates site-to-site variability. We develop the graphical model properties and theoretical justifications of this model. Our model has several advantages over the traditional logistic normal model used to analyze similar compositional data, including site-specific random effect terms and the incorporation of discrete and continuous covariates.

Keywords: Chain; graph; Contingency; table; Discrete; regression; model; Graphical; models (search for similar items in EconPapers)
Date: 2011
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