how to change the width of stat_boxplot (errorbar)

Question

I am using ggplot2 for box ploting.
However, I can't change the width of stat_boxplot (geom ='errorbar').
Here is part of my code:

geom_boxplot(width=0.5)+stat_boxplot(geom ='errorbar',width=0.5)

It's OK for geom_boxplot(), but the width of stat_boxplot(geom ='errorbar') is not changed .
Any suggestions? Thank you!

Answer 1

To resize the whiskers lines (width) we can use the argument stat_params = list(width = 0.5) inside the function: stat_boxplot

library(ggplot2)
ggplot(iris, aes(factor(Species), Sepal.Width, fill = Species)) +
  geom_boxplot() + 
  stat_boxplot(geom ='errorbar', stat_params = list(width = 0.5)) +

Update

Now we can use the argument width inside stat_boxplot

library(ggplot2)
ggplot(iris, aes(factor(Species), Sepal.Width, fill = Species)) +
  geom_boxplot() + 
  stat_boxplot(geom ='errorbar', width = 0.5)