For labs: Click the ‘Rmd file’ link and download to your RWorkflow folder. Open RStudio. Switch to your RWorkflow project, by clicking button in top right (click create a new project if you did not do this step before). If you need the landings data, download here here.

Reference. Rob J Hyndman (lead on the forecast package) and George Athanasopoulos have an excellent online text on practical forecasting and exponential smoothing. Read their chapter on exponential smoothing to learn more about these models and how to use them.