The total monthly rainfall in Emerald, Australia, and the average monthly SOI.
data(EmeraldAug)
A data frame with 114 rows (one per August over 114 years) and 4 columns:
The year
The rainfall in August of the given year; in mm
The monthly average Southern Oscillation Index (SOI)
the SOI phase (see Stone and Auliciems, 1992); a factor with these values: 1 (consistently negative), 2 (consistently positive), 3 (rapidly falling), 4 (rapidly rising), or 5 (consistently near zero)
Dunn, Peter K., and Gordon K. Smyth. 2018. Generalized Linear Models with Examples in R. Springer.