PM96455: SPSS STATISTICS MIXED PROCEDURE REPORTS APPARENTLY INCORRECT -2 LOG-LIKELIHOOD VALUES WHEN FAILING TO CONVERGE

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You can track all active APARs for this component.

APAR status

  • Closed as fixed if next.

Error description

  • You're running the MIXED procedure in SPSS Statistics. You have
    a situation wherein the procedure is not able to converge.
    You've adjusted some of the estimation criteria and managed to
    obtain a converged solution. However, you notice that the -2
    log-likelihood value reported in the analysis that failed to
    converge is reported as smaller (better) than the value from the
    analysis that achieved convergence, which should not be the
    case.
    

Local fix

  • This kind of anomalous result can occur when numerical issues
    arise during iterative computations. Although the situation that
    led to this particular result will be addressed in a future
    release, whenever failure to converge is indicated in MIXED, all
    results should be treated with caution.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * see APAR text                                                *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * This issue has been addressed in IBM SPSS Statistics 23      *
    * release                                                      *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * This issue has been addressed in IBM SPSS Statistics 23      *
    * release                                                      *
    ****************************************************************
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    PM96455

  • Reported component name

    SPSS STATISTICS

  • Reported component ID

    5725A54ST

  • Reported release

    K00

  • Status

    CLOSED FIN

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-09-05

  • Closed date

    2015-05-19

  • Last modified date

    2015-05-19

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

Applicable component levels

  • RN00 PSN

       UP

  • RN00 PSY

       UP



Document information


More support for:

SPSS Statistics
Statistics Desktop

Software version:

20.0

Reference #:

PM96455

Modified date:

2015-05-19

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