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Violin plot
A violin plot is a method of plotting numeric data. It is a box plot with a rotated kernel density plot on each side.〔(VIOLIN PLOT ). www.itl.nist.gov. Retrieved 14 October 2008.〕 The violin plot is similar to box plots, except that they also show the probability density of the data at different values (in the simplest case this could be a histogram). Typically violin plots will include a marker for the median of the data and a box indicating the interquartile range, as in standard box plots. Overlaid on this box plot is a kernel density estimation. Violin plots are available as extensions to a number of software packages, including R through the vioplot, wvioplot, caroline, UsingR, lattice, ggplot2 libraries, stata through the vioplot add-in,〔Hintze, Jerry L., and Ray D. Nelson. 1998. "Violin Plots: A Box Plot-Density Trace Synergism." The American Statistician 52(2):181-84.()〕 and the Python libraries Matplotlib〔("What's new in matplotlib: violin plots" )〕 and Seaborn.〔 (Violinplots showing observations )〕 Violin plots are also quite similar to the turnip graph used in STATA.〔gr45 - A turnip graph engine, Steve Woloshin, VA Outcomes Group, VA Medical Center, White River Junction, VT ()〕 ==References==
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