R How to Show the Y-Axis of a ggplot2 Barplot in Percentage Points (Example Code)

This tutorial illustrates how to set the axis labels of a barchart in percentage points in the R programming language.

Preparing the Example

my_df <- data.frame(labels = c("L1", "L2", "L3"),             # Example data
                    percentages = c(0.8, 0.4, 0.5))
my_df                                                         # Print data
#   labels percentages
# 1     L1         0.8
# 2     L2         0.4
# 3     L3         0.5
install.packages("ggplot2")                                   # Install ggplot2 package
library("ggplot2")                                            # Load ggplot2
my_plot <- ggplot(my_df, aes(x = labels, y = percentages)) +  # Create ggplot2 plot
  geom_bar(stat = "identity")
my_plot                                                       # Draw ggplot2 plot

r graph figure 1 r-show y axis-ggplot2 barplot percentage points

Example: Modifying Y-Axis as Percentage

my_plot +                                                     # Changing y-axis to percentage points
  scale_y_continuous(labels = scales::percent)

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