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DIGITS: Stata module to examine digit preferences in numeric variables

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Author Info

  • Richard J. Atkins

    ()
    (London School of Hygiene and Tropical Medicine)

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    Abstract

    This package contains three independent programs that provide a high level of flexibility in exploring digit preferences. digit is an extension to the Stata egen command. It can be used with egen to create a new variable containing the digits at a certain decimal place of an existing variable. Options are available to specify the decimal position that you wish to examine as well as the rounding that should be applied to the variable when extracting this digit. The resulting variable can be tabulated and used in goodness-of-fit tests as required. This is useful for in-depth exploration of digit preferences. digituse cross-tabulates digits against all the decimal places available in a variable, reporting results as percentage distribution of digits at each decimal place. This is useful for initial visual inspection of digit preferences. zerouse can be used to examine the pattern of use of the 'zero' digit within a variable. The range of decimal places examined can be defined as can the 'zero' digit. Results can be tabulated against other variables or stored in a new variable for later use.

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    File URL: http://fmwww.bc.edu/repec/bocode/_/_gdigit.ado
    File Function: program code
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    File URL: http://fmwww.bc.edu/repec/bocode/d/digit.hlp
    File Function: help file
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    File URL: http://fmwww.bc.edu/repec/bocode/d/digituse.ado
    File Function: program code
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    File URL: http://fmwww.bc.edu/repec/bocode/z/zerouse.ado
    File Function: program code
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    File URL: http://fmwww.bc.edu/repec/bocode/d/digituse.hlp
    File Function: help file
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    File URL: http://fmwww.bc.edu/repec/bocode/z/zerouse.hlp
    File Function: help file
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    Bibliographic Info

    Software component provided by Boston College Department of Economics in its series Statistical Software Components with number S456709.

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    Programming language: Stata
    Requires: Stata version 8
    Date of creation: 16 Mar 2006
    Date of revision: 12 Jun 2006
    Handle: RePEc:boc:bocode:s456709

    Note: This module should be installed from within Stata by typing "ssc install digits". Windows users should not attempt to download these files with a web browser.
    Contact details of provider:
    Postal: Boston College, 140 Commonwealth Avenue, Chestnut Hill MA 02467 USA
    Phone: 617-552-3670
    Fax: +1-617-552-2308
    Email:
    Web page: http://fmwww.bc.edu/EC/
    More information through EDIRC

    Order Information:
    Web: http://repec.org/docs/ssc.php

    Related research

    Keywords: digit preferences; decimal position; zero;

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