Graphical Models for Clustered Binary and Continuous Responses

Martin T. Wells () and Dabao Zhang
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Martin T. Wells: Cornell University, Department of Statistical Science

Chapter Chapter 19 in Advances in Directional and Linear Statistics, 2011, pp 305-321 from Springer

Abstract: Abstract Graphical models for clustered data mixed with discrete and continuous responses are developed. Discrete responses are assumed to be regulated by some latent continuous variables and particular link functions are used to describe the regulatory mechanisms. Inferential procedures are constructed using the full-information maximum likelihood estimation and observed/empirical Fisher information matrices. Implementation is carried out by stochastic versions of the generalized EM algorithm. As an illustrative application, clustered data from a developmental toxicity study is re-investigated using the directed graphical model and the proposed algorithms. A new interesting directed association between two mixed outcomes reveals. The proposed methods also apply to cross-sectional data with discrete and continuous responses.

Keywords: Conditional Expectation; Stochastic Version; Latent Continuous Variable; SAEM Algorithm; Directed Graphical Model (search for similar items in EconPapers)
Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-7908-2628-9_19

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DOI: 10.1007/978-3-7908-2628-9_19

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