在 ggplot2 中右对齐旋转轴标题

Question

如何将 Y 轴标题(“物种”)与轴标签(三个物种名称)右对齐，使轴标题靠近灰色面板？ hjust好像不影响位置。

library(ggplot2)

ggplot(iris,
       aes(x = Species,
           y = Sepal.Width)) +
  geom_boxplot() +
  labs(x = "Species",
      y = "Sepal Width") +
  coord_flip() +
  theme(axis.title.y = element_text(angle = 0, hjust = 0))

Answer 1

您可以使用 geom_text连同clip = "off"内coord_flip()这将允许在绘图面板之外绘制绘图元素。显然，您将不得不玩弄x和 y使用此手动方法获得所需的输出

library(ggplot2)

p <- ggplot(iris,
       aes(x = Species,
           y = Sepal.Width)) +
  geom_boxplot() +
  labs(x = NULL,
       y = "Sepal Width") +
  coord_flip(clip = "off") + # add clip = off here
  theme(axis.title.y = element_text(angle = 0, hjust = 0))

p +
  # add axis title here
  geom_text(
    x = 3.5,
    y = 1.85,
    inherit.aes = FALSE,
    label = "Species",
    check_overlap = TRUE,
    hjust = 1,
    fontface = 'bold',
    size = 5
  ) +
  theme(plot.margin = unit(c(1, 1, 1, 2), "lines"))

创建于 2018-10-27 由 reprex package (v0.2.1)