Chart Junk

Here is an example of the so called “Sectioned Density Plot”, which was recently published in “The American Statistician” (Vol 60, No. 2, 167-174).

Using a simple histogram, maybe with an added density estimator, and/or a simple standard boxplot for group comparison does the job here. No need to “invent” a new plot, which introduces more problems as it solves any.
Actually this plot makes a good case against the use of graphics …

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