Journal
JOURNAL OF STATISTICAL PLANNING AND INFERENCE
Volume 138, Issue 4, Pages 1038-1058Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jspi.2007.03.060
Keywords
Bayesian statistics; Monte Carlo methods; predictive density; spatial interpolation
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In this work we present a flexible class of linear models to treat observations made in discrete time and continuous space, where the regression coefficients vary smoothly in time and space. This kind of model is particularly appealing in situations where the effect of one or more explanatory processes on the response present substantial heterogeneity in both dimensions. We describe how to perform inference for this class of models and also how to perform forecasting in time and interpolation in space, using simulation techniques. The performance of the algorithm to estimate the parameters of the model and to perform prediction in time is investigated with simulated data sets. The proposed methodology is used to model pollution levels in the Northeast of the United States. (C) 2007 Elsevier B.V. All rights reserved.
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