ggplot2 line between title and subtitle

Question

Is there a way to include a line, like a separator, between the title and the subtitle with ggPlot? I know how to color the background of the title (see this Post)

Not terrific but you can do: `ggtitle("My title\n_______________________________________________", "My subtitle")` — Stéphane Laurent, Apr 22 '20 at 07:52

score 3 · Accepted Answer · answered Apr 22 '20 at 07:46

3

One possible solution is to manually trace a segment using geom_segment while setting clip = "off" on coord_cartesian:

df <- data.frame(x = 1:10,
                 y = 2:11)

ggplot(df, aes(x = x, y = y))+
  geom_point()+
  labs(title = "Main Title", subtitle = "Subtitle")+
  coord_cartesian(clip ="off")+
  geom_segment(x =0.5, xend = 2.5, y = 12.1, yend = 12.1)

You will have to adapt the position based on data you are going to plot but it is one possible solution

answered Apr 22 '20 at 07:46

dc37

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Thanks for your comment! Works really well for single Plots. Am I correct in assuming there is no such solution to include this divider in a theme? – Nico Apr 22 '20 at 07:55
1

You're welcome ;) For your question, to my knowledge, I don't think so (but maybe I'm wrong). – dc37 Apr 22 '20 at 07:57

score 1 · Answer 2 · answered Apr 22 '20 at 08:47

Another option simply to underline your Main title

library(ggplot2)
df <- data.frame(x = 1:10,
                 y = 2:11)
ggplot(df, aes(x = x, y = y)) + 
  geom_point() +
  labs(title = ~ underline("Main Title"), subtitle = "Subtitle")

related thread: How to underline text in a plot title or label? (ggplot2)

You could also play around in order to achieve a solution as suggested by user Stephane Laurent in their comment, pasting some empty spaces after a line break

^{Created on 2020-04-22 by the reprex package (v0.3.0)}

Thanks for your contribution. Unfortunately I haven't found a way to encorporate these solutions in a dynamic way. Any how, maybe something along these lines is possible in a future update of ggPlot — Nico, Apr 24 '20 at 07:01

ggplot2 line between title and subtitle

2 Answers2