SAS Institute Alert Note SN-007104

From: SAS Technical Support (LISTSERV@VM.SAS.COM)
Date: Wed Mar 20 2002 - 08:50:28 EST

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    SN-007104 ***Alert Note***

    Incorrect results with FREQ and/or WEIGHT statement when DIST=NEGBIN

    Product: SAS/STAT
    Component: GENMOD
    Priority: ALERT

      If you use a WEIGHT and/or FREQ statement in conjunction with the
      DIST=NEGBIN option in the MODEL statement, all results will be
      incorrect.

      To circumvent the problem, if you are using a FREQ statement, generate
      repeated observations rather than using the FREQ statement. There is no
      circumvention if you are using a WEIGHT statement.

    Keywords:
      incorrstat incorrout nb negbin negative binomial weights frequencies
      frequency freq weight
      incorrect results with freq and/or weight statement when dist=negbin
      007104 7104

    SAS Note Revised On: Wed, 13 Mar 2002

    System Version Reported Version Fixed

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

    No Fixes Available

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