polio

0th

Percentile

Polio Time Series

Time series of Polio incidences in U.S.A. from 1970 to 1983.

Keywords
datasets
Usage
data(polio)
Format

A data frame with the 168 monthly observations (from January 1970 to December 1983) with the following variables

y

time series of polio incidences.
t*10^( -3 ) linear trend multiplied by factor \(10^{(-3)}\).
cos( 2*pi*t/12 ) cosine annual seasonal component.
sin( 2*pi*t/12 ) sine annual seasonal component.
cos( 2*pi*t/6 ) cosine semi-annual seasonal component.
sin( 2*pi*t/6 ) sine semi-annual seasonal component.

Aliases
  • polio
Examples
# NOT RUN {
data(polio)
# }
Documentation reproduced from package gcmr, version 1.0.2, License: GPL (>= 2)

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