ggplot2 Error in R: geom_point requires the following missing aesthetics: x or y (2 Examples)
On this page, I’ll explain how to debug the ggplot2 “Error: geom_point requires the following missing aesthetics: y” in R programming.
Preparing the Examples
data(iris) # Example data for illustration of error 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 for illustration of error 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
Example 1: Replicating the ggplot2 Error Message – geom_point requires the following missing aesthetics
ggplot(iris, # Second variable is not specified aes(x = Sepal.Length)) + geom_point() # Error: geom_point requires the following missing aesthetics: y # Run `rlang::last_error()` to see where the error occurred. |
ggplot(iris, # Second variable is not specified aes(x = Sepal.Length)) + geom_point() # Error: geom_point requires the following missing aesthetics: y # Run `rlang::last_error()` to see where the error occurred.
Example 2: Solving the ggplot2 Error Message – geom_point requires the following missing aesthetics
ggplot(iris, # Second variable is properly specified aes(x = Sepal.Length, y = Sepal.Width)) + geom_point() |
ggplot(iris, # Second variable is properly specified aes(x = Sepal.Length, y = Sepal.Width)) + geom_point()
Related Articles
In the following, you can find some further resources on topics such as graphics in R, missing data, and ggplot2: