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Sleuth3 (version 1.0-3)

ex1518: Effectiveness of Measles Vaccine

Description

The data are the number of measles cases reported in the United States for each year from 1950 to 2008. A goal is to explore the effect of the introduction of the measles vaccine in 1963 on the series mean.

Usage

ex1518

Arguments

Format

A data frame with 59 observations on the following 3 variables.

Year

year

Cases

number of measles cases

Vaccine

a factor with levels "no" and "yes" indicating whether the measles vaccine had been licensed or not (yes for every year starting with 1963)

References

Center for Disease Control, http://www.cdc.gov/vaccines/pubs/pinkbook/downloads/appendices/G/cases-deaths.pdf retrieved on July 23, 2009

Examples

Run this code
# NOT RUN {
str(ex1518)
# }

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