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Problem Note 52483: Weights computed by the HPNEURAL procedure, or by the HP Neural node, are incorrect when the response variable has only two levels

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If you use the HPNEURAL procedure, or the HP NEURAL node, in SAS® Enterprise Miner™, the weights might be incorrect. The problem occurs when these conditions are satisfied.

    You run the HPNEURAL procedure and both of these conditions are true:

  • you specify LEVEL=NOM in the TARGET statement
  • your nominal target variable has only two levels (your target variable is binary)

    You run the HP NEURAL node and either of these conditions are true:

  • you specify NOMINAL for your target level, and your target has only two levels
  • you specify BINARY for the target level

There are no errors or warnings to indicate a problem.

There is no workaround.

Note that even if the problem occurs, the predictions are still correct. The Weights graph colors are affected.



Operating System and Release Information

Product FamilyProductSystemProduct ReleaseSAS Release
ReportedFixed*ReportedFixed*
SAS SystemSAS Enterprise Minerz/OS7.113.29.4 TS1M2
Microsoft® Windows® for x647.113.29.4 TS1M2
Microsoft Windows 8 Enterprise 32-bit7.113.29.4 TS1M2
Microsoft Windows 8 Enterprise x647.113.29.4 TS1M2
Microsoft Windows 8 Pro 32-bit7.113.29.4 TS1M2
Microsoft Windows 8 Pro x647.113.29.4 TS1M2
Microsoft Windows 8.1 Enterprise 32-bit7.113.29.4 TS1M2
Microsoft Windows 8.1 Enterprise x647.113.29.4 TS1M2
Microsoft Windows 8.1 Pro7.113.29.4 TS1M2
Microsoft Windows 8.1 Pro 32-bit7.113.29.4 TS1M2
Microsoft Windows Server 20087.113.29.4 TS1M2
Microsoft Windows Server 2008 R27.113.29.4 TS1M2
Microsoft Windows Server 2008 for x647.113.29.4 TS1M2
Microsoft Windows Server 2012 Datacenter7.113.29.4 TS1M2
Microsoft Windows Server 2012 R2 Datacenter7.113.29.4 TS1M2
Microsoft Windows Server 2012 R2 Std7.113.29.4 TS1M2
Microsoft Windows Server 2012 Std7.113.29.4 TS1M2
Windows 7 Enterprise 32 bit7.113.29.4 TS1M2
Windows 7 Enterprise x647.113.29.4 TS1M2
Windows 7 Home Premium 32 bit7.113.29.4 TS1M2
Windows 7 Home Premium x647.113.29.4 TS1M2
Windows 7 Professional 32 bit7.113.29.4 TS1M2
Windows 7 Professional x647.113.29.4 TS1M2
Windows 7 Ultimate 32 bit7.113.29.4 TS1M2
Windows 7 Ultimate x647.113.29.4 TS1M2
64-bit Enabled AIX7.113.29.4 TS1M2
64-bit Enabled HP-UX7.113.29.4 TS1M2
64-bit Enabled Solaris7.113.29.4 TS1M2
HP-UX IPF7.113.29.4 TS1M2
Linux7.113.29.4 TS1M2
Linux for x647.113.29.4 TS1M2
Solaris for x647.113.29.4 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.