SUPPORT / SAMPLES & SAS NOTES
Problem Note 61922: Variable Importance comment about the Gini index in "The HPFOREST Procedure" chapter is incorrect
 |  |  |  |
Documentation for SAS® Enterprise Miner™ high-performance procedures contains a comment about the Gini index in the chapter "The HPFOREST Procedure". The comment is displayed in the Loss Reduction subsection of the Measuring Variable Importance section.
"When the target is binary, variable importance based on the margin equals twice that of the variable importance based on the Gini index."
The comment is incorrect, and should be ignored.
Operating System and Release Information
| Product Family | Product | System | Product Release | SAS Release | ||
| Reported | Fixed* | Reported | Fixed* | |||
| SAS System | SAS High-Performance Data Mining | Microsoft® Windows® for x64 | 12.3 | 15.1 | 9.4 TS1M0 | 9.4 TS1M6 |
| Microsoft Windows 8 Enterprise x64 | 12.3 | 15.1 | 9.4 TS1M0 | 9.4 TS1M6 | ||
| Microsoft Windows 8 Pro x64 | 12.3 | 15.1 | 9.4 TS1M0 | 9.4 TS1M6 | ||
| Microsoft Windows 8.1 Enterprise 32-bit | 12.3 | 15.1 | 9.4 TS1M0 | 9.4 TS1M6 | ||
| Microsoft Windows 8.1 Enterprise x64 | 12.3 | 15.1 | 9.4 TS1M0 | 9.4 TS1M6 | ||
| Microsoft Windows 8.1 Pro 32-bit | 12.3 | 15.1 | 9.4 TS1M0 | 9.4 TS1M6 | ||
| Microsoft Windows 8.1 Pro x64 | 12.3 | 15.1 | 9.4 TS1M0 | 9.4 TS1M6 | ||
| Microsoft Windows 10 | 12.3 | 15.1 | 9.4 TS1M0 | 9.4 TS1M6 | ||
| Microsoft Windows Server 2008 R2 | 12.3 | 9.4 TS1M0 | ||||
| Microsoft Windows Server 2008 for x64 | 12.3 | 9.4 TS1M0 | ||||
| Microsoft Windows Server 2012 Datacenter | 12.3 | 15.1 | 9.4 TS1M0 | 9.4 TS1M6 | ||
| Microsoft Windows Server 2012 R2 Datacenter | 12.3 | 15.1 | 9.4 TS1M0 | 9.4 TS1M6 | ||
| Microsoft Windows Server 2012 R2 Std | 12.3 | 15.1 | 9.4 TS1M0 | 9.4 TS1M6 | ||
| Microsoft Windows Server 2012 Std | 12.3 | 15.1 | 9.4 TS1M0 | 9.4 TS1M6 | ||
| Windows 7 Enterprise x64 | 12.3 | 15.1 | 9.4 TS1M0 | 9.4 TS1M6 | ||
| Windows 7 Professional x64 | 12.3 | 15.1 | 9.4 TS1M0 | 9.4 TS1M6 | ||
| 64-bit Enabled AIX | 12.3 | 15.1 | 9.4 TS1M0 | 9.4 TS1M6 | ||
| 64-bit Enabled Solaris | 12.3 | 15.1 | 9.4 TS1M0 | 9.4 TS1M6 | ||
| HP-UX IPF | 12.3 | 15.1 | 9.4 TS1M0 | 9.4 TS1M6 | ||
| Linux for x64 | 12.3 | 15.1 | 9.4 TS1M0 | 9.4 TS1M6 | ||
| Solaris for x64 | 12.3 | 15.1 | 9.4 TS1M0 | 9.4 TS1M6 | ||