R/milk.R

In fma: Data Sets from "Forecasting: Methods and Applications" by Makridakis, Wheelwright & Hyndman (1998)

#' Monthly milk production per cow
#'
#' Average monthly milk production per cow over 14 years (January 1962 - December 1975).
#'
#' @format Time series data
#' @references Cryer (1986) \emph{Time series analysis}, Duxbury Press:
#' Belmont.
#' @source Makridakis, Wheelwright and Hyndman (1998) \emph{Forecasting:
#' methods and applications}, John Wiley & Sons: New York. Chapter 2.
#' @keywords datasets
#' @examples
#' par(mfrow=c(2,1))
#' plot(milk,xlab="Year",ylab="pounds",
#'     main="Monthly milk production per cow")
#' milk.adj <- milk/monthdays(milk)*365.25/12
#' plot(milk.adj,xlab="Year",ylab="pounds",
#'     main="Adjusted monthly milk production per cow")
#'
"milk"