Define Only Higher or Lower Bound of ggplot2 Axis Limit in R (Example Code)

In this article, I’ll explain how to define only the lower or upper bound of a ggplot2 axis limit in the R programming language.

Preparing the Example

data(iris)                                                 # Load & inspect 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")
my_plot <- ggplot(iris, aes(Sepal.Length, Sepal.Width)) +  # Basic ggplot2 of iris
  geom_point()
my_plot                                                    # Draw plot

r graph figure 1 define only higher or lower bound ggplot2 axis limit r

Example: Modifying Only Upper X-Axis Limit

my_plot +                                                  # Change x-axis limits manually
  scale_x_continuous(limits = c(NA, 6.5))

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