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st: Package to construct violin plots on SSC (vioplot)
From |
Nick Winter <[email protected]> |
To |
Stata List <[email protected]> |
Subject |
st: Package to construct violin plots on SSC (vioplot) |
Date |
Wed, 16 Jan 2008 08:49:13 -0500 |
Greetings,
Kit Baum has just posted my package -vioplot-, which constructs violin
plots.
Violin plots are a modification of box plots, that add plots of the
estimated kernel density to the summary statistics displayed by box
plots. They include a marker for the median of the data, a box
indicating the interquartile range, and spikes extending to the upper-
and lower-adjacent values, as in standard box plots. Overlaid with this
modified box plot is a density, estimated by kdensity. They were first
described by Hintze and Nelson (1998).
(There is a separate package, "violin," by Thomas Steichen that
constructs violin plots as well. The major difference is that program
runs under the "old," v7 graphics.)
Hintze, Jerry L., and Ray D. Nelson. 1998. "Violin Plots: A Box
Plot-Density Trace Synergism." The American Statistician 52(2):181-84.
I'd love any feedback on the program.
Best,
Nick Winter
--
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Assistant Professor 434.924.3359 f
Department of Politics [email protected] e
University of Virginia faculty.virginia.edu/nwinter w
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Charlottesville, VA 22904
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