R Set ggplot2 Axis Limits without Deleting Data Rows (2 Examples)

In this R programming post you’ll learn how to set the axis limits of a ggplot2 plot without removing data points.

Preparing the Examples

head(iris)                                                       # Iris data set
#   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 package
library("ggplot2")

Example 1: Zoom with Cut-Off

ggplot(iris, aes(Sepal.Length, Sepal.Width, group = Species)) +  # Basic plot
  geom_line()

r graph figure 1 r set ggplot2 axis limits without deleting data rows

ggplot(iris, aes(Sepal.Length, Sepal.Width, group = Species)) +  # Cutting off values
  geom_line() +
  xlim(5, 7) +
  ylim(2, 4.3)
# Warning:
# Removed 34 rows containing missing values (geom_path).

r graph figure 2 r set ggplot2 axis limits without deleting data rows

Example 2: Zoom without Cut-Off

ggplot(iris, aes(Sepal.Length, Sepal.Width, group = Species)) +  # Not cutting off values
  geom_line() +
  coord_cartesian(xlim = c(5, 7), ylim = c(2, 4.3))

r graph figure 3 r set ggplot2 axis limits without deleting data rows

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