Each row represents a county.
Obs: Observed casesExp: Expected cases, based on population and age distributionAFF: Proportion of the population employed in agriculture, fishing, or forestry.Latitude:Longitude:I obtained the data from the gcmr package in R. Original source:
Clayton D and Kaldor J. (1987). Empirical Bayes estimates of age-standardized relative risks for use in disease mapping. Biometrics, 43:671-681.