SAS/ETS User's Guide

Creating Time ID Variables

The Forecasting System requires that the input data set contain a time ID variable. If the data you wish to forecast are not in this form, you can use features of the Forecasting System to help you add time ID variables to your data set. This chapter shows examples of how to use these features.

Creating Time ID Value from a Starting Date and Frequency

Using Observation Numbers as the Time ID

Creating a Time ID from Other Dating Variables

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