DUMMIFY: Stata module to create indicator variables with automatic variable labels

Gorkem Aksaray ()
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Gorkem Aksaray: Trinity College Dublin

Statistical Software Components from Boston College Department of Economics

Abstract: dummify creates a set of indicator (0/1) variables from a categorical variable, one for each level, and labels each one automatically in the form "variable label = value label". It also reports a compact summary table listing each level, its value label, and the indicator created for it. Essentially, it is a more convenient implementation of tabulate, generate(), producing indicators that carry meaningful variable labels rather than the bare stems that tabulate, generate() leaves behind. varname must be numeric and contain only non-negative integer values. By default an indicator is created for every level; base or base(#) designates one level as an omitted reference category. An indicator equals 1 where varname takes the corresponding value and 0 elsewhere, and is left missing wherever varname is missing.

Language: Stata
Requires: Stata version 14
Keywords: data management; indicator variables; variable labels (search for similar items in EconPapers)
Date: 2026-06-12
Note: This module should be installed from within Stata by typing "ssc install dummify". The module is made available under terms of the MIT license (https://opensource.org/licenses/MIT).
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http://fmwww.bc.edu/repec/bocode/d/dummify.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/d/dummify.sthlp help file (text/plain)

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