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Example of using plotmath in ggplot2 facet labels
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| # load in package | |
| library(ggplot2) | |
| data("mpg") | |
| # create a separate column for the letter in the facet | |
| mpg$letter <- letters[as.numeric(as.factor(mpg$class))] | |
| # plot this | |
| ggplot(mpg, aes(cyl, hwy)) + | |
| geom_point() + | |
| facet_grid(. ~ class + letter , labeller = label_bquote(cols = (.(letter))~italic(.(class)))) |
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