如何在ggplot2中为异常点着色？我希望它们与boxplot本身颜色相同.colour=这还不够.
例:
p <- ggplot(mtcars, aes(factor(cyl), mpg))
p + geom_boxplot(aes(colour=factor(cyl)))
我也希望为异常值着色factor(cyl).这不起作用:
> p <- ggplot(mtcars, aes(factor(cyl), mpg))
> p + geom_boxplot(aes(colour=factor(cyl), outlier.colour=factor(cyl)))