R language ggplot2 visualization: use the ggballoonplot function of ggpubr package to visualize the balloon graph (visualize the contingency table composed of two classification variables), and config

R Language ggplot2 visualization ： Use ggpubr Bag ggballoonplot Function visualization balloon （ Visualize the contingency table composed of two classification variables ）、 To configure guides Function size Parameter specifies that the legend of data point size is not displayed

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