旋转轴标题

Question

p <- ggplot(mtcars, aes(cyl, mpg)) +
  geom_point()

# Create a simple secondary axis
p + scale_y_continuous("m1", sec.axis = sec_axis(~ . + 10, name = ("m2")))

如您所见，“ m1”和“ m2”正朝向该图，我想知道如何将“ m2”旋转90度？因此，它面对的方向与“ m1”相同？我尝试使用“旋转”，但在sec.axis中不允许。

Answer 1

尝试

ggplot(mtcars, aes(cyl, mpg)) +
  geom_point() + 
  scale_y_continuous("m1", sec.axis = sec_axis(~ . + 10, name = ("m2"))) +
  theme(axis.title.y.right = element_text(angle=90))