| cervical | R Documentation |
The number of deaths from cervical cancer in four countries
data(cervical)
A data frame with 16 observations on the following 4 variables.
Countrythe country;
a factor with levels EngWales (England and Wales),
Belgium, France and Italy
Agethe age group;
a factor with levels 25to34, 35to44,
45to54, 55to64
Deathsthe number of deaths; a numeric vector
Wyearsthe woman-years of risk; a numeric vector
The data give the number of deaths from cervical cancer, and the woman-years of risk, for various age groups and four countries.
A. S. Whittermore and G. Gong (1991) Poisson regression with misclassified counts: Applications to cervical cancer mortality rates. Applied Statistics, 40(1), 81–93.
data(cervical) with( cervical, plot(Deaths/Wyears ~ Age) )
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