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VMERGE: Stata module to provide a wrapper for the Stata merge command that provides additional details regarding the results of the update and replace options

Author

Listed:
  • Joe Canner

    (Johns Hopkins University School of Medicine)

Programming Language

Stata

Abstract

This command provides a summary table that lists each variable in the master data set and indicates how many variables were affected by the merge update and replace options. This summary table only reflects observations that are in the master data set (_merge==1, 3, 4, and 5). This command sends the merge specification and options to the Stata merge command without modification, without comment, and without any assessment as to whether using the verbose merge makes sense. This command temporarily duplicates all variables in the master data set, thus requiring additional memory equal to the size of the master data set. An option is available that eliminates the need to use this additional memory, but uses more disk space, takes longer, and results in more cryptic output.

Suggested Citation

  • Joe Canner, 2013. "VMERGE: Stata module to provide a wrapper for the Stata merge command that provides additional details regarding the results of the update and replace options," Statistical Software Components S457726, Boston College Department of Economics.
    • Handle: RePEc:boc:bocode:s457726
    Note: This module should be installed from within Stata by typing "ssc install vmerge". 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/v/vmerge.ado
    File Function: program code
    Download Restriction: no
    File URL: http://fmwww.bc.edu/repec/bocode/v/vmerge.sthlp
    File Function: help file
    Download Restriction: no
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    More about this item

    Keywords

    merge; master; using; update; replace; Stata;
    All these keywords.

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