Editing the title of legend in R line chart in ggplot2

Asked Sep 09 '18 at 11:36

Active Sep 09 '18 at 11:44

Viewed 85 times

I had previously asked a question about plotting multiple lines in a linechart using ggplot2.

Here: Adding a second legend to line chart in ggplot2 in R

I am using the solution provided there to generate the chart, however I want to modify the title of the legend.

I tried the following:

tidyr::gather(m, foo, value, -bar) %>% 
  ggplot(aes(bar, value, colour = foo, linetype = foo)) +
  geom_line() +
  scale_color_discrete(name = "my awesome title")

and I get the following.

The above creates a separate legend called "my awesome title". I want a single legend where the title of the legend would be "my awesome title".

I have attempted the various solutions mentioned here: How to change legend title in ggplot but I cannot get this to work. Any help would be appreciated.

edited Sep 09 '18 at 11:44

asked Sep 09 '18 at 11:36

Abhiroop Sarkar

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Do you want to retain the `foo` legend or just remove the `foo` title? – Hugh Sep 09 '18 at 11:45
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Add `+ scale_linetype_discrete("my awesome title")` to your plot or `+ labs(colour = "my awesome title", linetype = "my awesome title")` instead of `scale_color_discrete`. – markus Sep 09 '18 at 11:49
Thanks @markus your solution worked for me! – Abhiroop Sarkar Sep 09 '18 at 11:59

Editing the title of legend in R line chart in ggplot2

0 Answers0