Problem Note 37621: _TEMPORARY_ arrays in PROC PHREG are not initialized correctly
There is a problem with using _TEMPORARY_ arrays in programming statements inside the PROC PHREG step. In a DATA step, the elements of a _TEMPORARY_ array retain their values between observations. In PROC PHREG, elements of a _TEMPORARY_ array are zero for all observations, regardless of their initial values.
To circumvent the problem, explicitly define the array elements as covariates as in the PHREG documentation example "Time-Dependent Repeated Measurements of a Covariate."
Operating System and Release Information
| SAS System | SAS/STAT | z/OS | | |
| OpenVMS VAX | | |
| Microsoft® Windows® for 64-Bit Itanium-based Systems | | |
| Microsoft Windows Server 2003 Datacenter 64-bit Edition | | |
| Microsoft Windows Server 2003 Enterprise 64-bit Edition | | |
| Microsoft Windows XP 64-bit Edition | | |
| Microsoft® Windows® for x64 | | |
| OS/2 | | |
| Microsoft Windows 7 | | |
| Microsoft Windows 95/98 | | |
| Microsoft Windows 2000 Advanced Server | | |
| Microsoft Windows 2000 Datacenter Server | | |
| Microsoft Windows 2000 Server | | |
| Microsoft Windows 2000 Professional | | |
| Microsoft Windows NT Workstation | | |
| Microsoft Windows Server 2003 Datacenter Edition | | |
| Microsoft Windows Server 2003 Enterprise Edition | | |
| Microsoft Windows Server 2003 Standard Edition | | |
| Microsoft Windows Server 2008 | | |
| Microsoft Windows XP Professional | | |
| Windows Millennium Edition (Me) | | |
| Windows Vista | | |
| 64-bit Enabled AIX | | |
| 64-bit Enabled HP-UX | | |
| 64-bit Enabled Solaris | | |
| ABI+ for Intel Architecture | | |
| AIX | | |
| HP-UX | | |
| HP-UX IPF | | |
| IRIX | | |
| Linux | | |
| Linux for x64 | | |
| Linux on Itanium | | |
| OpenVMS Alpha | | |
| OpenVMS on HP Integrity | | |
| Solaris | | |
| Solaris for x64 | | |
| Tru64 UNIX | | |
*
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.
_TEMPORARY_ array elements in PROC PHREG are set to zero for all observations regardless of their initial values.
| Type: | Problem Note |
| Priority: | medium |
| Topic: | Analytics ==> Survival Analysis
SAS Reference ==> Procedures ==> PHREG
SAS Reference ==> Procedures ==> TPHREG
|
| Date Modified: | 2009-11-05 09:36:06 |
| Date Created: | 2009-10-27 19:44:18 |
