Draw Plot with Arrow in Base R & ggplot2 (2 Examples)

In this article you’ll learn how to draw a graphic with an arrow in the R programming language.

Creation of Example Data

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

Example 1: Add Arrow to Base R Graphic Using arrows() Function

plot(iris$Sepal.Length,        # Create Base R plot with arrow
     iris$Sepal.Width)
arrows(x0 = 5, y0 = 2.5,
       x1 = 7, y1 = 4,
       col = "red")

r graph figure 1 draw arrow base r ggplot2 programming language

Example 2: Add Arrow to ggplot2 Graphic Using arrows() Function

install.packages("ggplot2")    # Install & load ggplot2 package
library("ggplot2")
ggplot(iris,                   # Create ggplot2 plot with arrow
       aes(Sepal.Length,
           Sepal.Width)) +
  geom_point() +
  geom_segment(aes(x = 5, y = 2.5,
                   xend = 7, yend = 4),
               arrow = arrow(length = unit(0.4, "cm")),
               color = "red")

r graph figure 2 draw arrow base r ggplot2 programming language

Further Resources & Related Articles

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

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