The number of cases of lung cancer in four Danish cities.
data(DanishLC)A data frame with 24 rows (each combination) and 4 columns:
The number of lung cancer cases for the given age group and city
The population for the given age group and city
The age group; one of 40-54, 55-59,
60-64, 65-69, 70-74 or >74
The city; one of Fredericia, Horsens,
Kolding or Vejle
E. B. Andersen (1977). Multiplicative Poisson models with unequal cell rates. Scandinavian Journal of Statistics, 4, 153--158.