Problem Note 44979: CONTRAST with more rows than model parameters causes abnormal GENMOD termination or crash of SAS
If you specify the CLASS statement in PROC GENMOD with parameterization other than GLM (such as PARAM=REF or PARAM=EFFECT), and if you also specify a CONTRAST statement without the WALD option, which has more rows than nonredundant model parameters, then GENMOD will terminate abnormally (overflow, segmentation violation, etc.) or possibly cause SAS to terminate. Note that nonredundant model parameters means parameters which have nonzero degrees of freedom.
To avoid the problem, either use the WALD option in the CONTRAST statement, or use GLM parameterization (PARAM=GLM option) in the CLASS statement.
Operating System and Release Information
SAS System | SAS/STAT | Linux | 9.1 TS1M0 | 9.3 TS1M2 |
HP-UX IPF | 9.1 TS1M0 | 9.3 TS1M2 |
64-bit Enabled Solaris | 9.1 TS1M0 | 9.3 TS1M2 |
64-bit Enabled HP-UX | 9.1 TS1M0 | 9.3 TS1M2 |
Microsoft Windows XP Professional | 9.1 TS1M0 | 9.3 TS1M2 |
64-bit Enabled AIX | 9.1 TS1M0 | 9.3 TS1M2 |
Microsoft Windows Server 2003 Standard Edition | 9.1 TS1M0 | 9.3 TS1M2 |
Microsoft Windows Server 2003 Enterprise Edition | 9.1 TS1M0 | 9.3 TS1M2 |
Microsoft Windows Server 2003 Datacenter Edition | 9.1 TS1M0 | 9.3 TS1M2 |
Microsoft Windows NT Workstation | 9.1 TS1M0 | |
Microsoft Windows 2000 Professional | 9.1 TS1M0 | |
Microsoft Windows 2000 Server | 9.1 TS1M0 | |
Microsoft Windows 2000 Datacenter Server | 9.1 TS1M0 | |
Microsoft Windows 2000 Advanced Server | 9.1 TS1M0 | |
Microsoft Windows Server 2003 Enterprise 64-bit Edition | 9.1 TS1M0 | 9.3 TS1M2 |
Microsoft Windows Server 2003 Datacenter 64-bit Edition | 9.1 TS1M0 | 9.3 TS1M2 |
Microsoft® Windows® for 64-Bit Itanium-based Systems | 9.1 TS1M0 | 9.3 TS1M2 |
z/OS | 9.1 TS1M0 | 9.3 TS1M2 |
OpenVMS Alpha | 9.1 TS1M0 | 9.3 TS1M2 |
Tru64 UNIX | 9.1 TS1M0 | 9.3 TS1M2 |
*
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: | SAS Reference ==> Procedures ==> GENMOD
|
Date Modified: | 2012-02-14 11:15:01 |
Date Created: | 2011-11-30 13:26:56 |