r - 你如何让 x-lab 标签变成斜体而不是 y-lab 标签？ (在R)

Question

如何让 x-lab 标签变成斜体而不是 y-lab 标签？唯一的我可以找到的命令 (font.lab=3) 使 x-lab 和 y-lab 标签都变成斜体。我在 R 中创建在 x 轴和 y 轴上具有特定名称的条形图。

barplot(y, main="Main Title",
    names=c("a", "b", "c"),
    xlab="Text that I would like to be in italics",
    ylab="Text that I do NOT want to be in italics",
    font.lab=3)

Answer 1

 barplot(y, main="Main Title",
     names=c("a", "b", "c"),
     xlab=expression(italic("Text that I would like to be in italics")),
     ylab="Text that I do NOT want to be in italics")

这是一个 plotmath 调用:

?plotmath