ggplot2 : Plot mean with geom_bar

Question

I have the following data frame:

test2 <- data.frame(groups = c(rep(\"group1\",4), rep(\"group2\",4)), 
    X2 = c(rnorm(4), rnorm(4)) , 
    label = c(re         


        

Answer 1

Try using ggpubr. It creates ggplot2-like charts.

library(ggpubr)

ggbarplot(test2, x = "label", y = "X2",
          add = "mean", fill = "groups")

Alternatively, add a facet:

ggbarplot(test2, x = "label", y = "X2",
          add = "mean", fill = "groups",
          facet.by = "groups")