Annotate Rotated Text Label to ggplot2 Graph in R (Example Code)

This page demonstrates how to add a rotated text label to a ggplot2 graphic in R programming.

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 & load ggplot2
library("ggplot2")

Example: Adding a Rotated Text Element to a ggplot2 Plot

ggplot(iris,                     # Add rotated text element
       aes(x = Sepal.Width,
           y = Petal.Width)) +
  geom_line() +
  annotate("text",
           x = 3, y = 1.5,
           label = "This is the Iris Data Set",
           col = "red",
           size = 10,
           angle = 45)

r graph figure 1 annotate rotated text label ggplot2 graph r

Further Resources & Related Tutorials

Have a look at the following tutorials. They focus on topics such as dates, text elements, ggplot2, and graphics in R:

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