pomp (version 0.39-3)

LondonYorke: Historical childhood disease incidence data

Description

LondonYorke is a data-frame containing the monthly number of reported cases of chickenpox, measles, and mumps from two American cities (Baltimore and New York) in the mid-20th century (1928--1972).

Usage

data(LondonYorke)

References

W. P. London and J. A. Yorke, Recurrent Outbreaks of Measles, Chickenpox and Mumps: I. Seasonal Variation in Contact Rates, American Journal of Epidemiology, 98:453--468, 1973.

See Also

pomp-class and the vignettes

Examples

data(LondonYorke)

plot(cases~time,data=LondonYorke,subset=disease=="measles",type='n',main="measles",bty='l')
lines(cases~time,data=LondonYorke,subset=disease=="measles"&town=="Baltimore",col="red")
lines(cases~time,data=LondonYorke,subset=disease=="measles"&town=="New York",col="blue")
legend("topright",legend=c("Baltimore","New York"),lty=1,col=c("red","blue"),bty='n')

plot(
     cases~time,
     data=LondonYorke,
     subset=disease=="chickenpox"&town=="New York",
     type='l',col="blue",main="chickenpox, New York",
     bty='l'
    )

plot(
     cases~time,
     data=LondonYorke,
     subset=disease=="mumps"&town=="New York",
     type='l',col="blue",main="mumps, New York",
     bty='l'
    )