Refit is similar except that the model parameters are also reestimated from current data. Be sure to check either Reevaluate or Refit if you want to update previous forecasts using revised data. All options have defaults and can be omitted. Periods to forecast Specifies the forecasting horizon, or number of periods to forecast. The default is 12.
Confidence limits Specifies the width of the confidence limits computed for the forecast.
Select a value from the popup menu, or type in a value without a decimal point. The default is 95. If the data set does not already exist, it will be created. If a one-level name is provided, it is treated as a member in the WORK library. Other entry points can be specified for other purposes.