Quasi-deviance functions for spatially correlated data
2011
This paper introduces a quasi-deviance function for model selection of given spatial data. The proposed deviance function involves only the mean and covariance of responses, and therefore avoids the difficulty of specifying a full- likelihood function. We show that, under certain regularity conditions, the deviance function with quasi-likelihood estimating equation has a limiting chi-squared distri- bution. The asymptotic quadratic form of the deviance function provides a consis- tent method for selecting the true model. We also conduct simulations to evaluate the performance of the proposed method, and use the East Lansing Woods data to illustrate the application.
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