Grouped bar chart in ggplot

Question

For a sample dataframe:

df <- structure(list(year = c(1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 3, 
3, 3, 4, 4, 4, 4, 4), imd.quintile = c(1, 2, 3, 4, 5, 1, 2, 3, 
         


        

Answer 1

I believe you are looking for something like this:

library(ggplot2)

ggplot(df ) + 
  geom_col(aes(x = year, y = average_antibiotic, group=imd.quintile, fill=imd.quintile), position = "dodge" )