Econometrics and Time Series Papers
The Time Series Forecasting System
Charles Hallahan, Economic Research Service/USDA and Renee Samy, SAS Institute Inc., SUGI Proceedings, 1999.
Abstract
The Time Series Forecasting System (TSFS) is a component of SAS/ETS that provides a menu-based front-end for forecasting activities. The tasks of creating a date variable, graphing a data series and quickly seeing the results of differencing and/or applying a log transformation, testing for unit roots, examining autocorrelation and partial autocorrelation plots, performing seasonality tests, and, finally, estimating models and producing forecasts are just a mouse click away. This Hands-on Workshop is an introduction to the TSFS. Part 1 shows how to access the system and generate forecasting models for several variables through automatic selection from a default list of models provided with the TSFS. Part 2 shows how to override the defaults of the TSFS and take control of specifying a model. Part 3 shows how to add explanatory variables to the forecasting model and control the period of evaluation and fit of a model.
