R language ggplot2 visualization: histogram shows where the data set is, and visually highlights outliers and outliers

R language ggplot2 visualization: histogram shows where the data set is, and visually highlights outliers and outliers  

 

Table of contents

 R language ggplot2 visualization: ggplot2 visualized density map (displays data-intensive areas), ggplot2 visualized density map (logarithmic coordinates): the income density map of the log10 scale highlights the differences in the conventional density map