Problem Note 48120: Possible incorrect ESTIMATE statement results for zero-inflated models
If an ESTIMATE statement involving zero-inflation parameters precedes another ESTIMATE statement involving parameters of the mean model, the results of the statement involving the mean model will be incorrect. To avoid the problem, run the ESTIMATE statements alone in separate executions of PROC GENMOD.
Operating System and Release Information
| SAS System | SAS/STAT | z/OS | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Microsoft® Windows® for 64-Bit Itanium-based Systems | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Microsoft Windows Server 2003 Datacenter 64-bit Edition | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Microsoft Windows Server 2003 Enterprise 64-bit Edition | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Microsoft Windows XP 64-bit Edition | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Microsoft® Windows® for x64 | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Microsoft Windows Server 2003 Datacenter Edition | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Microsoft Windows Server 2003 Enterprise Edition | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Microsoft Windows Server 2003 Standard Edition | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Microsoft Windows Server 2003 for x64 | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Microsoft Windows Server 2008 | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Microsoft Windows Server 2008 for x64 | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Microsoft Windows XP Professional | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Windows 7 Enterprise 32 bit | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Windows 7 Enterprise x64 | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Windows 7 Home Premium 32 bit | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Windows 7 Home Premium x64 | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Windows 7 Professional 32 bit | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Windows 7 Professional x64 | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Windows 7 Ultimate 32 bit | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Windows 7 Ultimate x64 | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Windows Vista | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Windows Vista for x64 | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| 64-bit Enabled AIX | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| 64-bit Enabled HP-UX | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| 64-bit Enabled Solaris | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| HP-UX IPF | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Linux | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Linux for x64 | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| OpenVMS on HP Integrity | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
| Solaris for x64 | 9.22 | 9.3 | 9.2 TS2M3 | 9.3 TS1M0 |
*
For software releases that are not yet generally available, the Fixed
Release is the software release in which the problem is planned to be
fixed.
| Type: | Problem Note |
| Priority: | high |
| Topic: | Analytics ==> Categorical Data Analysis
SAS Reference ==> Procedures ==> GENMOD
|
| Date Modified: | 2012-10-10 14:15:15 |
| Date Created: | 2012-10-10 14:01:34 |
