VIOLIN: Stata module to generate violin plots

Thomas J Steichen ()

Statistical Software Components from Boston College Department of Economics

Abstract: violin produces violin plots, a graphical box plot--kernel density synergism. The violin plot combines the basic summary statistics of a box plot with the visual information provided by a local density estimator. The goal is to reveal the distributional structure in a variable. Much like a traditional box plot, the violin plot displays the median as a short horizontal line, the first-to-third interquartile range as a narrow shaded box, and the lower-to-upper adjacent value range as a vertical line, but it does not plot outside values. Instead, it "boxes" the data with mirrored density curves and labels the y-axis at the minimum, median and maximum observed data values. This is version 1.4.1 of the software. This version has been modified to run correctly under Stata Version 7 (though it remains a version 6 program).

Language: Stata
Requires: Stata version 6.0
Date: 1998-06-25, Revised 2001-02-04
Note: This module may be installed from within Stata by typing "ssc install violin". Windows users should not attempt to download these files with a web browser.

Downloads: (external link)
http://fmwww.bc.edu/repec/bocode/v/violin.ado program code (text/plain)
http://fmwww.bc.edu/repec/bocode/v/violin.hlp help file (text/plain)

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Persistent link: http://EconPapers.repec.org/RePEc:boc:bocode:s347301

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