Answer by IRTFM for ggplot2: Font Style in label expression
I do not think it is the presence of expression, although you don't say exactly what it is that you are seeing so it's difficult to be sure. On a Mac you get the xlab in bold-serif font, but the ylab...
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Changing font faces and sizes works well without expression in the labels. Here is the code where I've problem to change the font faces in label expression.p <- ggplot(data = mtcars, aes(x=wt,...
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