SAS Institute Alert Note SN-009424

From: SAS Technical Support (tsdlist@unx.sas.com)
Date: Fri Mar 21 2003 - 08:07:49 EST

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    SN-009424 ***Alert Note***

    Contradictory differencing specifications result in incorrect
    differencing

    Product: SAS/ETS
    Component: VARMAX procedure
    Priority: ALERT

      If differencing is specified with both the DIFX= option and the DIFY=
      option on the MODEL statement, and if the DIF= option on the MODEL
      statement specifies differencing which is contradictory with either
      DIFX= or DIFY= or both, then the variables are differenced incorrectly,
      the resulting output is incorrect, and one or both of the following
      warnings appear in the SAS log:

         WARNING: Since the DIF= option is specified, the DIFX= option is
         ignored.

         WARNING: Since the DIF= option is specified, the DIFY= option is
         ignored.

      To circumvent the problem, specify the differencing for the exogenous
      variables using either the DIFX= option or the DIF= option and specify
      the differencing for the endogenous variables using either the DIFY=
      option or the DIF= option.

    Keywords:
      incorrout incorrstat varmax exogenous difference difx dif specified
      ignored warning option varmax endogenous
      contradictory differencing specifications result in incorrect
      differencing
      009424 9424

    SAS Note Revised On: Thu, 6 Mar 2003

    System Version Reported Version Fixed

    AIX 64 bit 8.2 TS2M0 9 TSM0
    AIX/6000 8 TSM1
    AIX/6000 8.1 TS1M0
    AIX/6000 8.2 TS2M0
    VM/ESA (CMS) 8 TSM1
    VM/ESA (CMS) 8.1 TS1M0
    VM/ESA (CMS) 8.2 TS2M0
    Compaq Tru64 UNIX 8 TSM1 9 TSM0
    Compaq Tru64 UNIX 8.1 TS1M0 9 TSM0
    Compaq Tru64 UNIX 8.2 TS2M0 9 TSM0
    HP-UX Operating Systems 8 TSM1
    HP-UX Operating Systems 8.1 TS1M0
    HP-UX Operating Systems 8.2 TS2M0
    HP-UX 64 bit 8.2 TS2M0 9 TSM0
    Intel ABI 8 TSM1
    Intel ABI 8.1 TS1M0
    Intel ABI 8.2 TS2M0
    Linux 8.2 TS2M0 9 TSM0
    MIPS ABI 8 TSM1
    MIPS ABI 8.1 TS1M0
    MIPS ABI 8.2 TS2M0
    OS/390 (MVS) 8 TSM1 9 TSM0
    OS/390 (MVS) 8.1 TS1M0 9 TSM0
    OS/390 (MVS) 8.2 TS2M0 9 TSM0
    IBM OS/2 8 TSM1
    IBM OS/2 8.1 TS1M0
    IBM OS/2 8.2 TS2M0
    Solaris 8 TSM1
    Solaris 8.1 TS1M0
    Solaris 8.2 TS2M0
    Solaris 64 bit 8.2 TS2M0 9 TSM0
    OpenVMS VAX 8 TSM1
    OpenVMS VAX 8.1 TS1M0
    OpenVMS VAX 8.2 TS2M0
    OpenVMS Alpha 8 TSM1 9 TSM0
    OpenVMS Alpha 8.1 TS1M0 9 TSM0
    OpenVMS Alpha 8.2 TS2M0 9 TSM0
    Windows NT 8 TSM1 9 TSM0
    Windows NT 8.1 TS1M0 9 TSM0
    Windows NT 8.2 TS2M0 9 TSM0
    Windows 2000 Datacenter Server 8 TSM1 9 TSM0
    Windows 2000 Datacenter Server 8.1 TS1M0 9 TSM0
    Windows 2000 Datacenter Server 8.2 TS2M0 9 TSM0
    Windows 2000 Professional 8 TSM1 9 TSM0
    Windows 2000 Professional 8.1 TS1M0 9 TSM0
    Windows 2000 Professional 8.2 TS2M0 9 TSM0
    Windows 2000 Server and Advanced Server 8 TSM1 9 TSM0
    Windows 2000 Server and Advanced Server 8.1 TS1M0 9 TSM0
    Windows 2000 Server and Advanced Server 8.2 TS2M0 9 TSM0
    Windows 95 8 TSM1
    Windows 95 8.1 TS1M0
    Windows 95 8.2 TS2M0
    Windows 98 8 TSM1
    Windows 98 8.1 TS1M0
    Windows 98 8.2 TS2M0
    Windows ME 8.2 TS2M0
    Windows XP 8.2 TS2M0 9 TSM0

    No Fixes Available

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