How to Annotate Text to a ggplot2 Graph in R (Example Code)
This article illustrates how to annotate text elements to ggplot2 graphics in the R programming language.
Preparing the Example
data(iris) # Example data head(iris) # Sepal.Length Sepal.Width Petal.Length Petal.Width Species # 1 5.1 3.5 1.4 0.2 setosa # 2 4.9 3.0 1.4 0.2 setosa # 3 4.7 3.2 1.3 0.2 setosa # 4 4.6 3.1 1.5 0.2 setosa # 5 5.0 3.6 1.4 0.2 setosa # 6 5.4 3.9 1.7 0.4 setosa |
install.packages("ggplot2")# Install ggplot2 package library("ggplot2") # Load ggplot2 package |
ggp <- ggplot(iris, # ggplot2 graph without text aes(Sepal.Length, Sepal.Width)) + geom_point() ggp |
Example: Adding Text Element to ggplot2 Plot Using annotate() Function
ggp + # Annotating text to ggplot2 graph annotate("text", x = 6.8, y = 4, label = "This is my text!", col = "orange", size = 8) |
Further Resources & Related Tutorials
Below, you can find some additional resources that are related to the content of this post.