Changing background color for a text annotation to increase contrast and visibility

r ggplot2 colors background-color annotate
Andy Stein picture Andy Stein · Sep 20, 2016 · Viewed 13.5k times · Source

I'd like to change the background color for my annotate text so that it's green and covers up anything behind it (like the horizontal line in the example below). How do I do that?

ggplot() + 
  geom_hline(yintercept=0) + 
  annotate("text",x=0,y=0,label="Here is a line")

enter image description here

Answer

Martin Schmelzer picture Martin Schmelzer · Sep 20, 2016

Try geom_label instead: 

ggplot() + 
  geom_hline(yintercept = 0) + 
  labs(x = "", y = "") +
  geom_label(aes(x = 0, y = 0, label = "Here is a line"), fill = "green")

enter image description here

Related questions

Change bar plot colour in geom_bar with ggplot2 in r

I have the following in order to bar plot the data frame. c1 <- c(10, 20, 40) c2 <- c(3, 5, 7) c3 <- c(1, 1, 1) df <- data.frame(c1, c2, c3) ggplot(data=df, aes(x=c1+c2/2, y=…

Read More
Add color to boxplot - "Continuous value supplied to discrete scale" error

There is probably a very easy solution to my problem but I couldn't find a satisfying answer online. Using the following command I was able to create the following boxplot graph and overlay it with the individual data points: ggplot(…

Read More
"Error: Continuous value supplied to discrete scale" in default data set example mtcars and ggplot2

I am trying to replicate the example here (sthda.com) using the following code: # Change point shapes and colors manually ggplot(mtcars, aes(x=wt, y=mpg, color=cyl, shape=cyl)) + geom_point() + geom_smooth(method=lm, se=FALSE, fullrange=…

Read More