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LONGCH: Stata module to identify how many records satisfy a condition

Author

Listed:
  • Tony Brady

    (Royal Postgraduate Medical School)

Programming Language

Stata

Abstract

The command longch is used with data in which there are several records per subject. The variable idname identifies the subjects, and the string in c() contains a logical condition. The program reports the number of subjects for which some records satisfy the condition; the number for which no records satisfy the condition; and the number of subjects for which every record satisfies the condition. In addition the logical variables _some, _none and _every which flag the records are created. This is useful for dropping all records belonging to subjects of a particular type, eg those with no records satisfying the condition.

Suggested Citation

  • Tony Brady, 1998. "LONGCH: Stata module to identify how many records satisfy a condition," Statistical Software Components S354202, Boston College Department of Economics.
    • Handle: RePEc:boc:bocode:s354202
    as

    Download full text from publisher

    File URL: http://fmwww.bc.edu/repec/bocode/l/longch.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/l/longch.hlp
    File Function: help file
    Download Restriction: no
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    More about this item

    Keywords

    Stata;

    Statistics

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