ggplot 2中的多行标题，带有多个斜体字 [英] Multi line title in ggplot 2 with multiple italicized words

问题描述

我正尝试在两行中手动格式化情节标题，其中包括两个斜体字，我已经完成了

解决方案

结合使用 atop ， paste ，斜体和 scriptstyle ：

  ggplot（mtcars，aes（x = wt，y = mpg））+ 
 geom_point（）+ 
 labs （标题=〜atop（粘贴（'第一行标题'，italic（Species）），
粘贴（scriptstyle（italic（Species）），
 scriptstyle（secondline words ），
 scriptstyle（italic（anotherSpecies）），
 scriptstyle（the end））））
  

为您提供期望的结果：

使用 scriptstyle 并不是必需的，但是imho将字幕放在比主标题更小的字体中更好。

另见？plotmath 用于其他有用的定制。

I am trying to create a plot title manually formatted on two lines which includes two italicized words, I have done some searching on Stack Exchange but have not found a good solution to this seemingly simple problem.

The scientific names of the two species are fairly long, and thus the need for a multi-line title (ggplot2 doesn't format this).

Objective:

..........First Line of Title with Species

Second line words anotherItalicSpecies the end

ggplot(mtcars,aes(x=wt,y=mpg))+
  geom_point()+
  labs(title= expression(paste(atop("First line of title with ", atop((italic("Species")))),"
       secondline words", italic("anotherSpecies"), "the end")))

Which yields the following mangled title:

解决方案

Using a combination of atop, paste, italic and scriptstyle:

ggplot(mtcars, aes(x = wt, y = mpg)) +
  geom_point() +
  labs(title = ~ atop(paste('First line of title with ',italic("Species")),
                      paste(scriptstyle(italic("Species")),
                            scriptstyle(" secondline words "),
                            scriptstyle(italic("anotherSpecies")),
                            scriptstyle(" the end"))))

gives you the desired result:

Using scriptstyle is not a necessity, but imho it is nicer to have your subtitle in a smaller font than the main title.

See also ?plotmath for other usefull customizations.

这篇关于ggplot 2中的多行标题，带有多个斜体字的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！