R Make Background of ggplot2 Graph Transparent (Example Code)

data(iris)                        # Iris data set as 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

data(iris) # Iris data set as 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")

install.packages("ggplot2") # Install & load ggplot2 package library("ggplot2")

my_plot <- ggplot(iris,           # Plot without transparent background
                  aes(Sepal.Width,
                      Sepal.Length)) +
  geom_point()
my_plot                           # Draw default ggplot2 plot

my_plot <- ggplot(iris, # Plot without transparent background aes(Sepal.Width, Sepal.Length)) + geom_point() my_plot # Draw default ggplot2 plot

my_plot_trans <- my_plot +        # Plot with transparent background
  theme(rect = element_rect(fill = "transparent"))

my_plot_trans <- my_plot + # Plot with transparent background theme(rect = element_rect(fill = "transparent"))

ggsave(my_plot_trans,             # Export transparent png file
       filename = "my_plot_trans.png",
       bg = "transparent")

ggsave(my_plot_trans, # Export transparent png file filename = "my_plot_trans.png", bg = "transparent")