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ASSERTKY: Stata module to assert unique dataset keys

Author

Listed:
  • David Kantor

Programming Language

Stata

Abstract

assertky will sort the data and assert that a given varlist is a key for the dataset -- that is, whether the values in the varlist uniquely identify observations. This can be convenient when you wish to simultaneously sort the data and test for whether varlist is a key, such as in preparation for a -merge- or certain -by- operations.

Suggested Citation

  • David Kantor, 2006. "ASSERTKY: Stata module to assert unique dataset keys," Statistical Software Components S456785, Boston College Department of Economics.
    • Handle: RePEc:boc:bocode:s456785
    Note: This module should be installed from within Stata by typing "ssc install assertky". The module is made available under terms of the GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). Windows users should not attempt to download these files with a web browser.
    as

    Download full text from publisher

    File URL: http://fmwww.bc.edu/repec/bocode/a/assertky.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/a/assertky.hlp
    File Function: help file
    Download Restriction: no
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