Statistics Seminar
Date/Time: | Friday, 08 Nov 2013 from 12:10 pm to 1:00 pm |
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Location: | Coover 1016 |
Cost: | Free |
URL: | www.stat.iastate.edu |
Contact: | Jeanette La Grange |
Phone: | 515-294-3440 |
Channel: | College of Liberal Arts and Sciences |
Categories: | Lectures |
Actions: | Download iCal/vCal | Email Reminder |
We consider statistical tools for regression analysis of nominal categorical data on a spatial lattice. In a generalized linear mixed model framework, we model the response variable by a multinomial distribution. There are two additive components in the linear predictor: a linear regression on covariates and a spatial random effect such that the spatial dependence in the random effect is induced by a multivariate conditional autoregressive model. Bayesian hierarchical modeling is used for statistical inference and Markov chain Monte Carlo algorithms are devised to obtain posterior samples. The methodology is applied to analyze a northern Wisconsin land cover data set in a study that assesses the relationship between forest landscape structure and past social conditions, expanding the analytical tools available in landscape ecology and environmental history.