如何在ggplot2中旋转标签? [英] How can I rotate labels in ggplot2?

问题描述

我有一个带有标签的散点图.我想旋转标签-而不是水平位置，我想垂直查看它们.我只在Stackoverflow上看到关于旋转轴标签的q-s.

I have a scatter graph with lables. I want to rotate lables - instead of horizontal position I want to see them vertically. I only saw q-s about rotating axis lables on Stackoverflow.

示例:

mtdata <- mtcars %>%
  rownames_to_column(var = "name")

ggplot(mtdata, aes(x = mpg, y = wt)) + geom_point() +
  geom_label(data = mtdata %>%
               filter(mpg > 20 & wt >3), aes(label = name))

推荐答案

如果可以使用 geom_text ，可以使用 angle 参数.

You can use angle parameter if you are ok using geom_text.

library(dplyr)
library(ggplot2)

ggplot(mtdata, aes(x = mpg, y = wt)) + geom_point() +
  geom_text(data = mtdata %>% filter(mpg > 20 & wt >3), 
            aes(label = name), angle = 90, hjust = -1)

很遗憾， geom_label 中没有 angle .

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