format
A data frame with the 56 observations with the following variables
ll{
observed observed cases in each county.
expected excpected cases in each county.
AFF proportion of the population employed in agriculture, fishing, or forestry.
latitude county latitude.
longitude county longitude.
}source
Waller, L.A. and Gotway, C.A. (2004) Applied Spatial Statistics for Public Health Data. New York: John Wiley and Sons.
http://www.sph.emory.edu/~lwaller/book/ch2/scotland.dat