EMLINK: Stata module to perform probabilistic record linkage (Fellegi-Sunter) with unsupervised EM estimation

Mario Anderson Apaza Ñaupa ()
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Mario Anderson Apaza Ñaupa: NA

Statistical Software Components from Boston College Department of Economics

Abstract: emlink assumes the comparison variables have already been normalized. The command does not clean strings for you. Accents, mixed case, digits and stray punctuation create artificial disagreements that the EM reads as evidence against a match, so normalization must happen first {bf:and must use identical rules in both files}. A file that keeps accents linked against one that strips them will link badly no matter how the model is specified.

Language: Stata
Requires: Stata version 17
Keywords: data managemnet; linking (search for similar items in EconPapers)
Date: 2026-09-09
Note: This module should be installed from within Stata by typing "ssc install emlink". The module is made available under terms of the MIT license (https://opensource.org/licenses/MIT).
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Downloads: (external link)
http://fmwww.bc.edu/repec/bocode/e/emlink.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/_/_emlink_split.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/e/emlink.sthlp help file (text/plain)
http://fmwww.bc.edu/repec/bocode/e/emlink_engine.mata
http://fmwww.bc.edu/repec/bocode/e/emlink_test.do

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