TD_ARIMAFORECAST is used to forecast a user-defined number of periods based on on models fitted from the TD_ARIMAESTIMATE function.
The following procedure is an example of how to use TD_ARIMAFORECAST:
- Run TD_ARIMAESTIMATE function with FIT_PERCENTAGE less than 100 to get the coefficients for the ARIMA model.
- Run TD_ARIMAVALIDATE function to validate the model produced during the TD_ARIMAESTIMATE estimation phase.
- Run the TD_ARIMAFORECAST function on the ART table produced by TD_ARIMAVALIDATE to forecast the future periods beyond the last observed period.