CHIC 465/565 – Environmental Epidemiology

Chapter 8 Concluding Remarks

Almost everything we have discussed in this course has its analogue in a space-time setting. Methods for space-time data are less well developed than for purely spatial (or purely temporal) data, but this situation is changing rapidly

  • this course has included very little detailed discussion of inference for spatial data:

    • for exploratory analysis of case-control data, non-parametric methods are widely used, and hypothesis testing can be based on the randomisation distribution induced by the study design;

    • in other settings, parametric modelling assumptions are widely used, and inference uses likelihood-based methods, whether classical or Bayesian;

    • the Bayesian paradigm is particularly well suited to problems involving predictive inference for latent spatial processes, because it naturally adjusts for parameter uncertainty in the construction of prediction intervals.

  • software to implement most of the methods described in this course is freely available:

    The above R packages are available from the Comprehensive R Archive Network (CRAN): try searching for “spatstat CRAN” in google for instance.