Change Axis Ticks of ggplot2 Graph in R (Example Code)

This article illustrates how to change the axis tick marks of a ggplot2 graphic in R programming.

Setting up the Example

data(iris)                     # Loading iris 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
my_plot <- ggplot(iris,        # ggplot2 graph with default axis breaks
                  aes(x = Sepal.Length,
                      y = Sepal.Width)) +
  geom_line()
my_plot

r graph figure 1 change axis ticks ggplot2 graph

Example: Set X-Axis Ticks in ggplot2 Plot Manually Using scale_x_continuous() Function

my_plot +                      # Setting axis ticks manually
  scale_x_continuous(breaks = c(4.5, 5, 7))

r graph figure 2 change axis ticks ggplot2 graph

Related Articles

In addition, you might want to have a look at the related tutorials of my website:

Leave a Reply

Your email address will not be published.

Fill out this field
Fill out this field
Please enter a valid email address.
You need to agree with the terms to proceed

Menu
Top