change thickness of the whole line geom_boxplot()

user702846 picture user702846 · May 2, 2014 · Viewed 29.7k times · Source

I would like to increase the boldness of the entire boxplot to be more visible on the hard copy. from Here seems "fatten" parameter change the thickness of the only median line. Is there any other parameter that control the thickness/width of the the whole box plot ?

require(reshape)
require(ggplot2)
cars_melt = melt(cars)

ggplot(aes(x = variable, y = value), data = cars_melt) + 
  geom_boxplot(fatten = 2) 

Answer

eipi10 picture eipi10 · May 14, 2014

Use geom_boxplot(lwd=3) ("lwd" for "line width"). Also, if lwd makes the median too thick, you can use lwd and fatten together to make the median line thinner relative to the other lines.