Abstract #301533

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JSM 2002 Abstract #301533
Activity Number: 250
Type: Contributed
Date/Time: Tuesday, August 13, 2002 : 2:00 PM to 3:50 PM
Sponsor: Section on Statistics & the Environment*
Abstract - #301533
Title: Missing Covariate Treatment in Ecological Data
Author(s): Keying Ye*+ and Edward Boone and Eric Smith
Affiliation(s): Virginia Polytechnic Institute and State University and Virginia Polytechnic Institute and State University and Virginia Polytechnic Institute and State University
Address: 410 Hutcheson, Blacksburg, Virginia, 24061-0439, USA
Keywords: Bayesian Model Averaging ; Missing covariates ; BIC
Abstract:

In this presentation, we propose a new Bayesian method for dealing with missing coviariates. The proposed method allows for the natural incorporation of missing data mechanisms, incorporates covariate structure, and does not make any assumption on the observed covariates. In the normal covariate case, we extend this method with an asymptotic approximation, which allows for fast and accurate posterior inferences. In addition, in the normal covariate case we use this method to perform Bayesian Model Averaging.

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Revised March 2002