Hello Radu,

You need the ggplot2 package, just install it and then try this tutorial for ilustration:

http://www.sthda.com/english/wiki/ggplot2-violin-plot-quick-start-guide-r-software-and-data-visualization

Hello Radu,

You need the ggplot2 package, just install it and then try this tutorial for ilustration:

http://www.sthda.com/english/wiki/ggplot2-violin-plot-quick-start-guide-r-software-and-data-visualization

May be this questions are interesting for you. 

Hi,

Other option than ggplot2 (Elena's answer) you can use vioplot package. 

vioplot depends on sm package because the violin plot is a combined of a box plot and a kernel density plot from sm package. 

This example may help:

https://www.r-bloggers.com/example-8-11-violin-plots/

vioplot is not part of the sm package

Thank you all for the useful answers you provided me.