Number of time units
The first, and most important of these, is the Number of time units to forecast text box. This controls how many time steps into the future the forecaster will produce predictions for. The default is set to 1, i.e. the system will make a single 1-step-ahead prediction. For the airline data we set this to 24 (to make monthly predictions into the future for a two year period) and for the wine data we set it to 12 (to make monthly predictions into the future for a one year period). The units correspond to the periodicity of the data (if known). For example, with data recorded on a daily basis the time units are days.