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COLLAPSEUNIQUE: Stata module to reduce data to unique observations based on specified key variables

Author

Listed:
  • David Kantor

Programming Language

Stata

Abstract

collapseunique reduces data to unique values based on a specified set of key variables. This tests for functional dependence; if the test passes, the data set gets collapsed. This is useful for extracting embedded functional dependency information, and for data normalization. The package includes the funcdep program for detecting functional dependence.

Suggested Citation

  • David Kantor, 2003. "COLLAPSEUNIQUE: Stata module to reduce data to unique observations based on specified key variables," Statistical Software Components S433301, Boston College Department of Economics, revised 24 Jun 2008.
    • Handle: RePEc:boc:bocode:s433301
    Note: This module may be installed from within Stata by typing "ssc install collapseunique". 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/c/collapseunique.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/c/collapseunique.hlp
    File Function: help file
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/f/funcdep.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/f/funcdep.hlp
    File Function: help file
    Download Restriction: no
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