Italics in dashboard headings in facet_wrap()

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I’m having trouble formatting species names in italics in the title of the panels with the argument facet_wrap in the ggplot2. Following example:

library(ggplot2)
ggplot(mpg, aes(x=displ, y=hwy)) +
  geom_point() +
  geom_smooth(method="lm", se=FALSE, colour="black") +
  facet_wrap(~ trans)

In this example we have as a result 10 panels, each with a title, which are the variables in my original data table. How to put these titles in italics?

r ggplot2
  • 4

    Thanks a lot, Marcus! Even asking the question here, I kept trying to find out, and I had already thought that the way would be through strip.text, I just hadn’t got the code formatting right.... Thank you very much!!

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1 answer

5

No help from function ggplot2::theme, it is possible to find the argument strip.text. His description is as follows:: facet labels (element_text(); inherits from text). So just change the option to strip.text inside theme to obtain the desired result:

library(ggplot2)
ggplot(mpg, aes(x=displ, y=hwy)) +
  geom_point() +
  geom_smooth(method="lm", se=FALSE, colour="black") +
  facet_wrap(~ trans) +
  theme(strip.text = element_text(face = "italic"))

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