USpopu: US national population

Description Usage Format References See Also Examples

Description

US national population by four groups from 1900 to 1979. The four groups are: Age 0; Age 20; Age 40; Age 60.

Usage

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Format

A data frame with 320 observations on 3 variables.

age numeric the group variable of age
year numeric a numeric vector, giving year
population numeric a numeric vector, giving population in millions

References

www.census.gov/popest/archives/pre-1980/PE-11.html, U.S. Census Bureau, Population Division. Internet Release date: October 1, 2004

See Also

T.L2, T.aov, T.var.

Examples

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data(USpopu)
t1 <- T.L2(USpopu$year, USpopu$population, USpopu$age, degree=2)
t1
plot(t1)
plot(t1, test.statistic=FALSE, legend.position="topleft")

fANCOVA documentation built on May 30, 2017, 8:15 a.m.