I am using ggplot2 to make a barplot. X-axis is a dummy variable so it shows 0.0 and 1.0 on the plot. But I want to make it more readable. For example, change the 0.0 to male, 1.0 to female.

CodePudding user response：

The easier way is to mutate the data frame column from numeric to factor type prior the plotting. See the code below:

library(tidyverse)

# Simulation
df <- data.frame(gender = c(0, 0, 1, 1, 0, 0), country = factor(c("US", "EU", "UK", "US", "EU", "EU")))


# Mutate from numeric to factor
df_m <- df %>% as_tibble() %>%
  mutate(gender = as.factor(if_else(gender < 1, "Male", "Female")))

# Plots
ggplot(df_m, aes(gender, fill = country))  
  geom_bar()

Output: