STRKEEP: Stata module to clean string variables by keeping only whitelisted characters

Roger Chu ()
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Roger Chu: Research for Action

Statistical Software Components from Boston College Department of Economics

Abstract: strkeep cleans a string variable or varlist by keeping only certain characters. In essence, this command is a "whitelist" command, while a function like subinstr() is a "blacklist" command. Instead of finding characters that you want to remove, strkeep finds characters that you want to keep and removes all other characters.

Language: Stata
Requires: Stata version 14
Keywords: string variable; data management; whitelist (search for similar items in EconPapers)
Date: 2016-11-03, Revised 2017-04-07
Note: This module should be installed from within Stata by typing "ssc install strkeep". 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.
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http://fmwww.bc.edu/repec/bocode/s/strkeep.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/s/strkeep.sthlp help file (text/plain)

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