Problem Note 34587: CALL EIGEN in the IML Procedure might modify the input matrix
The CALL EIGEN routine creates a set of symmetric coefficients that is based internally on the input matrix when calculating the eignevalues. If the routine encounters a pair of coefficients that are nearly equal, then it will change the input matrix permanently.
Select the Hot Fix tab in this note to access the hot fix for this issue.
Operating System and Release Information
| SAS System | SAS/IML | z/OS | 8.2 TS2M0 | 9.2 TS1M0 |
| OpenVMS VAX | 8.2 TS2M0 | 9.2 TS1M0 |
| OS/2 | 8.2 TS2M0 | |
| Microsoft Windows 95/98 | 8.2 TS2M0 | |
| Microsoft Windows 2000 Advanced Server | 8.2 TS2M0 | |
| Microsoft Windows 2000 Datacenter Server | 8.2 TS2M0 | |
| Microsoft Windows 2000 Server | 8.2 TS2M0 | |
| Microsoft Windows 2000 Professional | 8.2 TS2M0 | |
| Microsoft Windows NT Workstation | 8.2 TS2M0 | |
| Microsoft Windows Server 2003 Datacenter Edition | 8.2 TS2M0 | 9.2 TS1M0 |
| Microsoft Windows Server 2003 Enterprise Edition | 8.2 TS2M0 | 9.2 TS1M0 |
| Microsoft Windows Server 2003 Standard Edition | 8.2 TS2M0 | 9.2 TS1M0 |
| Microsoft Windows XP Professional | 8.2 TS2M0 | 9.2 TS1M0 |
| Windows Millennium Edition (Me) | 8.2 TS2M0 | |
| 64-bit Enabled AIX | 8.2 TS2M0 | 9.2 TS1M0 |
| 64-bit Enabled HP-UX | 8.2 TS2M0 | 9.2 TS1M0 |
| 64-bit Enabled Solaris | 8.2 TS2M0 | 9.2 TS1M0 |
| ABI+ for Intel Architecture | 8.2 TS2M0 | 9.2 TS1M0 |
| AIX | 8.2 TS2M0 | 9.2 TS1M0 |
| HP-UX | 8.2 TS2M0 | 9.2 TS1M0 |
| IRIX | 8.2 TS2M0 | 9.2 TS1M0 |
| Linux | 8.2 TS2M0 | 9.2 TS1M0 |
| OpenVMS Alpha | 8.2 TS2M0 | 9.2 TS1M0 |
| Solaris | 8.2 TS2M0 | 9.2 TS1M0 |
| Tru64 UNIX | 8.2 TS2M0 | 9.2 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: | alert |
| Topic: | Analytics ==> Matrix Programming
SAS Reference ==> Procedures ==> IML
|
| Date Modified: | 2009-01-26 12:48:27 |
| Date Created: | 2009-01-23 15:43:24 |
