A common approach in tutorials is to jump right into manipulating a plotting time series by using one of R's many built-in time series data sets. Here, I'd like to explain how to actually create a time series object (an R object of type ts) like you would if you were to have to perform forecasting on your own data.
I made available some special data sets that we'll use in this and future chapters by putting on a repository on the internet.
Let's first start by downloading one of these data sets and peering into its contents:
> download.file("https://raw.githubusercontent.com/tonyfischetti/dawr/master/forecasting/school-supplies.csv", "./school-supplies.csv")> school <- read.csv("./school-supplies.csv")> head(school) ...
