Plotting cumulative counts in ggplot2

Question

There are some posts about plotting cumulative densities in ggplot. I\'m currently using the accepted answer from Easier way to plot the cumulative frequency distribution in

Answer 1

You can apply row_number over the groups, and utilize that as the Y aesthetic in a geom_step or other geometry. You'll just have to sort by X, or the values will appear as they do in the data frame, unordered.

ggplot(x %>% 
         group_by(A) %>% 
         arrange(X) %>% 
         mutate(rn = row_number())) + 
  geom_step(aes(x=X, y=rn, color=A))