R ggplot2 Error Message: Cannot use with single argument (2 Examples)

data(iris)                                         # Loading iris
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) # Loading iris 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 package

install.packages("ggplot2") # Install ggplot2 package library("ggplot2") # Load ggplot2 package

ggplot(iris, aes(Sepal.Length, Petal.Length))      # + sign at wrong position
+  geom_point()
# Error: Cannot use `+.gg()` with a single argument. Did you accidentally put + on a new line?
# Run `rlang::last_error()` to see where the error occurred.

ggplot(iris, aes(Sepal.Length, Petal.Length)) # + sign at wrong position + geom_point() # Error: Cannot use `+.gg()` with a single argument. Did you accidentally put + on a new line? # Run `rlang::last_error()` to see where the error occurred.

ggplot(iris, aes(Sepal.Length, Petal.Length)) +    # + sign at correct position
  geom_point()

ggplot(iris, aes(Sepal.Length, Petal.Length)) + # + sign at correct position geom_point()