arctic.oscillations {UsingR} | R Documentation |
A monthly time series from January 1899 to June 2002 of sea-level pressure measurements relative to some baseline.
data(arctic.oscillations)
The format is: chr "arctic.oscillations"
See http://jisao.washington.edu/ao/ for more details on the importance of this time series.
The data came from the file AO_TREN_NCEP_Jan1899Current.ascii found at http://www.atmos.colostate.edu/ao/Data/ao_index.html.
data(arctic.oscillations) x = ts(arctic.oscillations, start=c(1899,1), frequency=12) plot(x)