What’s New in SAS High-Performance Forecasting 4.1

Overview

SAS High-Performance Forecasting 4.1 coincides with SAS 9.3. Each release provides new features while maintaining all the capabilities of previous releases.
New features in SAS High-Peformance Forecasting 4.1 are briefly summarized here:
  • The HPF procedure supports new ODS plots.
  • The HPFDIAGNOSE procedure includes support for combined models and auxiliary data set support.
  • The HPFENGINE procedure includes support for combined models, a generalized model selection topology, auxiliary data sets, new ODS plots, and more.
  • The HPFSELECT procedure includes support for defining model combination lists.
  • HPFTEMPRECON is a new procedure to perform temporal reconciliation of time series forecasts that are generated at two different frequencies. Temporal reconciliation is commonly referred to as benchmarking.

HPF Procedure Enhancements

The HPF procedure contains the following new features:
  • New ODS plots and plot options are available. You can plot the periodogram for the error series or a combined pediodogram and spectral density estimate plot. You can also generate the prediction error correlation plot matrix.

HPFDIAGNOSE Procedure Enhancements

The HPFDIAGNOSE procedure contains the following new features:
  • Auxiliary data set support enables the HPFDIAGNOSE procedure to use other data sets as additional input sources for explanatory variables that are needed during the run of the procedure. Previously all variables that were required during the procedure run had to be physically present in the primary DATA= data set.
  • The COMBINE statement directs the HPFDIAGNOSE procedure to generate a model combination list for the set of automatic models that are generated from its time series diagnostics. This model combination list is included in the generated model selection list as another candidate forecast for the HPFENGINE procedure to consider in its forecast selection process.

HPFENGINE Procedure Enhancements

The HPFENGINE procedure contains the following new features:
  • New ODS plots and plot options are available. You can plot the periodogram for the error series or a combined pediodogram and spectral density estimate plot. You can also generate the prediction error correlation plot matrix.
  • Auxiliary data set support enables the HPFENGINE procedure to use other data sets as additional input sources for explanatory variables that are needed during the run of the procedure. Previously all variables that were required during the procedure run had to be physically present in the primary DATA= data set.
  • The FORCEBACK option enables you to change the default behavior so that a BACK= region is strictly enforced across all BY groups.
  • The OUTACCDATA= option directs the HPFENGINE procedure to capture variable information from the run to feed into the HPFTEMPRECON procedure.
  • The HPFENGINE procedure supports a more general model selection topology. Termed the forecast model selection graph, it remains semantically compatible with the previous model selection list.
  • The HPFENGINE procedure supports combined models as part of its automated model selection process. User-defined combined model lists are created through the HPFSELECT procedure. The HPFDIAGNOSE procedure can optionally create combined model lists as part of its custom model generation process.

HPFSELECT Procedure Enhancements

The HPFSELECT procedure contains the following new features:
  • The COMBINE statement directs the HPFSELECT procedure to create a combined model list. Statement options enable you to control different aspects of the forecast combination process for the candidate models identified in the SPEC statements.

HPFTEMPRECON Procedure

The HFTEMPRECON procedure is a new procedure.