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Paper No. 16-04

Download Paper No. 16-04

Author: Forte A, García-Donato G and Steel F.J.

Title: Methods and tools for bayesian variable selection and model averaging in univariate linear regression

Abstact: In this paper we briefly review the main methodological aspects concerned with the application of the Bayesian approach to model choice and model averaging in the context of variable selection in regression models. This includes prior elicitation, summaries of the posterior distribution and computational strategies. We then examine and compare various publicly available R-packages for its practical implementation summarizing and explaining the dierences between packages and giving recommendations for applied users. We find that all packages reviewed lead to very similar results, but there are potentially important dierences in flexibility and efficiency of the packages