Defining the Hierarchy
To forecasta numerical prediction of a future value for a specified time period for each unique combination of BY variable values hierarchically, you must assign BY variables and use one of the hierarchical models in the pipeline for the project. The ordering of the BY variables constructs the forecasting hierarchy.
An example of a hierarchy is Region > Product Line > Product Name.
Example of Hierarchy
After you set up a project hierarchythe order of the variables that you have assigned to the BY variables role. An example of a hierarchy is Region > Product Category > Product Line. , you can specify how SAS Visual Forecasting reconciles forecasts between levels in the hierarchy. Make this specification in the hierarchical forecast model in the pipeline. See Understanding Hierarchy Reconciliation for more information.
Make sure you are certain about your project hierarchy before running pipelines. Any changes to the hierarchy require the pipelines to be run again. After running the pipelines again, the changes to the hierarchy can cause unintended effects to any Interactive Modeling nodes used in the project.