Create ggplot2 Graphic with Greyscale in R (Example Code)

In this R tutorial you’ll learn how to create a ggplot2 graphic with grey colors.

Setting up the Example

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")
my_plot <- ggplot(iris,        # ggplot2 plot with colors
                  aes(x = Species,
                      y = Sepal.Length,
                      fill = Species)) +
  geom_bar(stat = "identity")
my_plot                        # Draw default ggplot2 plot

r graph figure 1 create ggplot2 graphic greyscale

Example: Draw ggplot2 Plot with Greyscale Instead of Colors

my_plot +                      # ggplot2 plot with greyscale
  scale_fill_grey()

r graph figure 2 create ggplot2 graphic greyscale

Related Articles & Further Resources

Please find some further R programming language tutorials on topics such as variables, time objects, and ggplot2 below.

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