survival (version 3.1-8)

uspop2: Projected US Population

Description

US population by age and sex, for 2000 through 2020

Usage

data(uspop2)

Format

The data is a matrix with dimensions age, sex, and calendar year. Age goes from 0 through 100, where the value for age 100 is the total for all ages of 100 or greater.

Details

This data is often used as a "standardized" population for epidemiology studies.

See Also

uspop

Examples

# NOT RUN {
us50 <- uspop2[51:101,, "2000"]  #US 2000 population, 50 and over
age <- as.integer(dimnames(us50)[[1]])
smat <- model.matrix( ~ factor(floor(age/5)) -1)
ustot <- t(smat) %*% us50  #totals by 5 year age groups
temp <- c(50,55, 60, 65, 70, 75, 80, 85, 90, 95)
dimnames(ustot) <- list(c(paste(temp, temp+4, sep="-"), "100+"),
                         c("male", "female"))
# }