txttool: Utilities for text analysis in Stata

Unislawa Williams () and Sean P. Williams ()
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Unislawa Williams: Spelman College
Sean P. Williams: SunTrust Bank

Stata Journal, 2014, vol. 14, issue 4, 817-829

Abstract: This article describes txttool, a command that provides a set of tools for managing free-form text. The command integrates several built-in Stata functions with new text capabilities. These latter functions include a utility to create a bag-of-words representation of text and an implementation of Porter’s (1980, Program: Electronic library and information systems 14: 130–137) wordstemming algorithm. Collectively, these utilities provide a text-processing suite for text mining and other text-based applications in Stata. Copyright 2014 by StataCorp LP.

Keywords: txttool; text mining; Porter stemmer; bag of words; cleaning; stop words; subwords (search for similar items in EconPapers)
Date: 2014
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