The INTERVAL= option is used to establish the frequency of the time series. For example, INTERVAL=MONTH specifies that each observation in the input data set represents one month. If INTERVAL=MONTH2, ...

0–5 and 5–10 would not be sensible groups as there is an overlap and 5 belongs in two class intervals. Once finished, the table is known as a grouped frequency chart. Here is the data from a ...

Before you continue with the example, it is worthwhile to consider how the system determined the values for the Time ID and Interval fields in the Data Set Selection window. The Forecasting System ...