R/ipod.R

In speegled/tswrdata: Data for use with the book, Time Series with R, by Darrin Speegle.

#' Quarterly sales of ipods
#'
#' 
#' @format A data frame with 52 observations of 3 variable2
#' \describe{
#'   \item{category}{quarter}
#'   \item{i_pod}{number of sales of ipods, in millions}
#'   \item{yoy_growth}{year over year growth, percent}
#' }
#'
#' @source https://barefigur.es/companies/apple/ipod/
"ipod"