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.