Problem Note 48286: Incorrect predicted values with SELECTION=, full-rank parameterization, and missing values
If you use the SELECTION= option in the MODEL statement, and the PARAM=REF, PARAM=EFFECT, or PARAM=ORDINAL option in the CLASS statement, and if there are missing values in some variables that are not included in the final model, then some predicted probabilities produced by the P= or PREDPROBS= option in the OUTPUT statement may be incorrect. In some cases the LOGISTIC procedure will appear to hang. The PARAM=GLM parameterization can be used to avoid the problem.
Operating System and Release Information
SAS System | SAS/STAT | 64-bit Enabled Solaris | 9.1 TS1M0 | 9.3 TS1M0 |
HP-UX IPF | 9.1 TS1M0 | 9.3 TS1M0 |
64-bit Enabled HP-UX | 9.1 TS1M0 | 9.3 TS1M0 |
64-bit Enabled AIX | 9.1 TS1M0 | 9.3 TS1M0 |
Microsoft Windows XP Professional | 9.1 TS1M0 | 9.3 TS1M0 |
Microsoft Windows Server 2003 Standard Edition | 9.1 TS1M0 | 9.3 TS1M0 |
Microsoft Windows Server 2003 Enterprise Edition | 9.1 TS1M0 | 9.3 TS1M0 |
Microsoft Windows Server 2003 Datacenter Edition | 9.1 TS1M0 | 9.3 TS1M0 |
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 TS1M0 |
Microsoft Windows Server 2003 Datacenter 64-bit Edition | 9.1 TS1M0 | 9.3 TS1M0 |
Microsoft® Windows® for 64-Bit Itanium-based Systems | 9.1 TS1M0 | 9.3 TS1M0 |
z/OS | 9.1 TS1M0 | 9.3 TS1M0 |
Linux | 9.1 TS1M0 | 9.3 TS1M0 |
OpenVMS Alpha | 9.1 TS1M0 | 9.3 TS1M0 |
Tru64 UNIX | 9.1 TS1M0 | 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 Analytics ==> Regression SAS Reference ==> Procedures ==> LOGISTIC
|
Date Modified: | 2012-10-26 15:28:28 |
Date Created: | 2012-10-26 14:59:24 |