ggplot2 Warning in R: Removed rows containing missing values (Example Code)

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

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 package
library("ggplot2")

install.packages("ggplot2") # Install & load ggplot2 package library("ggplot2")

my_plot <- ggplot(iris,        # Draw ggplot2 with default axes
                  aes(Sepal.Length,
                      Petal.Length)) +
  geom_line()
my_plot

my_plot <- ggplot(iris, # Draw ggplot2 with default axes aes(Sepal.Length, Petal.Length)) + geom_line() my_plot

my_plot +                      # Manually set axis limits (cut-off values)
  scale_x_continuous(limits = c(4.5, 6))
# Warning message:
#   Removed 65 row(s) containing missing values (geom_path).

my_plot + # Manually set axis limits (cut-off values) scale_x_continuous(limits = c(4.5, 6)) # Warning message: # Removed 65 row(s) containing missing values (geom_path).