CODEWITHSUNDEEP
rggplot2boxplot
MYaseen208
MYaseen208

Reputation: 23898

ggplot2: horizontal position of stat_summary with geom_boxplot

I want to annotate mean of each boxplot using ggplot2. However, I could not figure out how to horizontally center the symbols marking the means within their respective boxes (see image below).

MWE is below for reference:

library(ggplot2)
ggplot(data=mpg, mapping=aes(x=class, y=hwy)) + 
  geom_boxplot(aes(color = drv), outlier.shape = NA) +
  stat_summary(fun.y = mean, geom = "point", size=2, aes(shape = drv, color = drv)) + 
  theme_bw()

enter image description here

Upvotes: 7

Views: 10520

Answers (1)

Boris Leroy
Boris Leroy

Reputation: 500

Try with position_dodge()

ggplot(data=mpg, mapping=aes(x=class, y=hwy)) + 
       geom_boxplot(aes(color = drv), outlier.shape = NA) +
       stat_summary(fun.y = mean, geom = "point", size=2, aes(shape = drv, color = drv), 
                    position = position_dodge(width = .75)) + 
       theme_bw()

Upvotes: 8

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