Advanced Search
MyIDEAS: Login to save this software component or follow this series

DIGITS: Stata module to examine digit preferences in numeric variables


Author Info

  • Richard J. Atkins

    (London School of Hygiene and Tropical Medicine)

Registered author(s):


    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.

    Download Info

    If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.
    File URL:
    File Function: program code
    Download Restriction: no

    File URL:
    File Function: help file
    Download Restriction: no

    File URL:
    File Function: program code
    Download Restriction: no

    File URL:
    File Function: program code
    Download Restriction: no

    File URL:
    File Function: help file
    Download Restriction: no

    File URL:
    File Function: help file
    Download Restriction: no

    Bibliographic Info

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

    as in new window
    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
    Web page:
    More information through EDIRC

    Order Information:

    Related research

    Keywords: digit preferences; decimal position; zero;


    This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.


    Access and download statistics


    When requesting a correction, please mention this item's handle: RePEc:boc:bocode:s456709. See general information about how to correct material in RePEc.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Christopher F Baum).

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If references are entirely missing, you can add them using this form.

    If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.