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61 lines
2.1 KiB
Markdown
61 lines
2.1 KiB
Markdown
# Violin Plots for Matlab
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A violin plot is an easy to read substitute for a box plot that
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replaces the box shape with a kernel density estimate of the data, and
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optionally overlays the data points itself. The original boxplot shape
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is still included as a grey box/line in the center of the violin.
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Violin plots are a superset of box plots, and give a much richer
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understanding of the data distribution, while not taking more space.
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You will be able to instantly spot too-sparse data, or multi-modal
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distributions, which could go unnoticed in boxplots.
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`violinplot` is meant as a direct substitute for `boxplot` (excluding
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named arguments). Additional constructor parameters include the width
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of the plot, the bandwidth of the kernel density estimation, and the
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X-axis position of the violin plot.
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For more information about violin plots, read "[Violin plots: a box
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plot-density trace synergism](http://www.stat.cmu.edu/~rnugent/PCMI2016/papers/ViolinPlots.pdf)"
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by J. L. Hintze and R. D. Nelson in The American Statistician, vol.
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52, no. 2, pp. 181-184, 1998 (DOI: 10.2307/2685478).
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For a simple call:
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```matlab
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load carbig MPG Origin
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Origin = cellstr(Origin);
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figure
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vs = violinplot(MPG, Origin);
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ylabel('Fuel Economy in MPG');
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xlim([0.5, 7.5]);
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```
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You can also play around with the different options, and tune your violin plots to your liking.
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```matlab
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grouporder={'England','Sweden','Japan','Italy','Germany','France','USA'};
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vs = Violin({MPG(strcmp(Origin, grouporder{pos}))},...
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position,...
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'HalfViolin','right',...% left, full
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'QuartileStyle','shadow',... % boxplot, none
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'DataStyle', 'histogram',... % scatter, none
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'ShowNotches', false,...
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'ShowMean', false,...
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'ShowMedian', true,...
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'ViolinColor', color);
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```
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## Citation
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[](https://zenodo.org/badge/latestdoi/60771923)
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If you want to cite this repository, use
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> Bechtold, Bastian, 2016. Violin Plots for Matlab, Github Project
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> https://github.com/bastibe/Violinplot-Matlab, DOI: 10.5281/zenodo.4559847
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