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_GDISTINCT: Stata module providing egen function to count distinct values

Author

Listed:
  • Noah Case

Programming Language

Stata

Abstract

_gdistinct is a function that works with egen to generate a variable whose value is the count of distinct observations of another variable (or list of variables). It takes a by option, so that you can find the number of distinct observations of one set of variables within a by-group.

Suggested Citation

  • Noah Case, 2024. "_GDISTINCT: Stata module providing egen function to count distinct values," Statistical Software Components S459362, Boston College Department of Economics.
    • Handle: RePEc:boc:bocode:s459362
    Note: This module should be installed from within Stata by typing "ssc install _gdistinct". 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/_/_gdistinct.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/_/_gdistinct.sthlp
    File Function: help file
    Download Restriction: no
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