data(AirPassengers)
class(AirPassengers)
1 "ts"
In the spirit of Exploratory Data Analysis (EDA) a good first step is to look at a plot of your time-series data:
plot(AirPassengers) # plot the raw data
abline(reg=lm(AirPassengers~time(AirPassengers))) # fit a trend line
For...
Time series data can be stored as a ts object. ts objects contain information about seasonal frequency that is used by ARIMA functions. It also allows for calling of elements in the series by date using the window command.
#Create a dummy dataset of 100 observations
x <- rnorm(100)
#Convert ...
