How to Align Text & Line in ggplot2 Graph in R (Example Code)
This tutorial shows how to align text and lines in a ggplot2 plot in the R programming language.
Preparing the Example
data(iris) # Example data in R 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 in R 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 scatterplot aes(x = Sepal.Length, y = Petal.Length)) + geom_point() my_plot |
my_plot <- ggplot(iris, # Draw ggplot2 scatterplot aes(x = Sepal.Length, y = Petal.Length)) + geom_point() my_plot
Example: Properly Align Line & Text in ggplot2 Plot Using Line Break
my_plot + # Annotate line & text elements geom_hline(yintercept = 2.5) + annotate("text", x = 6, y = 2.5, label = "Higher Valuesn") + annotate("text", x = 6, y = 2.5, label = "nLower Values") |
my_plot + # Annotate line & text elements geom_hline(yintercept = 2.5) + annotate("text", x = 6, y = 2.5, label = "Higher Valuesn") + annotate("text", x = 6, y = 2.5, label = "nLower Values")
Related Articles & Further Resources
You may find some related R programming tutorials in the following list.