Problem Note 15919: BACK= option ignored if TASK=SELECT(MINOBS=n) option is in effect
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The BACK= option on the PROC HPFENGINE statement is ignored when the TASK=SELECT(MINOBS=n) option on the PROC HPFENGINE statement is in effect for a given series. In this case, the simple mean model estimated and forecast by the procedure is based on all of the available data, rather than on the subset of data created based on the BACK= option. This causes the parameter estimate for the series to be incorrect, as well as the forecasts written to the OUTFOR= data set.
The estimated model and the forecasts for series in which the TASK=SELECT(MINOBS=n) option is not in effect are correct.
Select the Hot Fix tab in this note to access the hot fix for this issue.
Operating System and Release Information
| Product Family | Product | System | SAS Release | |
| Reported | Fixed* | |||
| SAS System | SAS High-Performance Forecasting | Microsoft Windows XP Professional | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 |
| Microsoft® Windows® for 64-Bit Itanium-based Systems | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 | ||
| Microsoft Windows XP 64-bit Edition | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 | ||
| Microsoft Windows NT Workstation | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 | ||
| Microsoft Windows Server 2003 Datacenter Edition | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 | ||
| Microsoft Windows Server 2003 Standard Edition | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 | ||
| Microsoft Windows Server 2003 Enterprise Edition | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 | ||
| Microsoft Windows 2000 Professional | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 | ||
| Microsoft Windows 2000 Server | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 | ||
| Microsoft Windows 2000 Advanced Server | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 | ||
| 64-bit Enabled Solaris | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 | ||
| Microsoft Windows 2000 Datacenter Server | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 | ||
| z/OS | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 | ||
| Linux | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 | ||
| 64-bit Enabled HP-UX | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 | ||
| Linux on Itanium | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 | ||
| HP-UX IPF | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 | ||
| OpenVMS Alpha | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 | ||
| 64-bit Enabled AIX | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 | ||
| Tru64 UNIX | 9.1 TS1M3 SP3 | 9.1 TS1M3 SP4 | ||
A fix for SAS 9.1.3 (9.1 TS1M3) for this issue is available at:
http://www.sas.com/techsup/download/hotfix/e9_sbcs_prod_list.html#015919| Type: | Problem Note |
| Priority: | alert |
| Topic: | Analytics ==> Forecasting Analytics ==> Time Series Analysis SAS Reference ==> Procedures ==> HPFENGINE |
| Date Modified: | 2005-09-09 09:13:43 |
| Date Created: | 2005-08-10 12:42:00 |