Add Filling Color to Area Under ggplot2 Line Plot in R (Example Code)
In this article you’ll learn how to add filling color below the line in a line graphic in R.
Introduction of Example Data
data(iris) # Load iris data set 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 |
Example: Add Color to Area Under ggplot2 Line Plot
install.packages("ggplot2") # Install & load ggplot2 library("ggplot2") |
my_plot <- ggplot(iris, # No filling aes(x = 1:nrow(iris), y = Sepal.Length)) + geom_line() my_plot |
my_plot + # With filling geom_area() |
Further Resources & Related Tutorials
Please find some related R tutorials in the following list: