Age, Period and Cohort Effects for Vital Rates
Number of prostate cancer deaths and midperiod population for nonwhites in the USA by age and period. The cohort index k is related to age and period indices (i and j, respectively) by k = j + I - i, where I = max(i) (Holford, 1983, Table 2).
data(cohorts)
A data frame with 49 observations on the following 4 variables.
A factor with levels 1935-
, 1940-
, ..., 1965-
.
A factor with levels 50-
, 55-
, ..., 80-
.
Numeric: the number of prostate cancer deaths.
Numeric: the midperiod population size.
Holford, T.R., 1983. The estimation of age, period and cohort effects for vital rates. Biometrics 39, 311-324.
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