带有计数的堆叠条形图中 geom_text 的百分比

Question

I want to have a stacked barplot with percentages in it based on counts. I have almost reached what I want but every value in the text is 100% instead of the real percentage ... I think there is one small mistake in my code but I can not find it.

ggplot(
  mtcars,
  aes(fill = factor(gear), 
      x = factor(carb))
) + 
  geom_bar(stat = "count", 
           position = "fill", 
           color = "black",
           width = 0.5) + 
  geom_text(aes(label = scales::percent(..prop..)), 
            position = position_fill(vjust = 0.5), 
            stat = "count") + 
  coord_flip()

Answer 1

Building on this answer

You can use this:

ggplot(
  mtcars,
  aes(fill = factor(gear), 
      x = factor(carb))
) + 
  geom_bar(stat = "count", 
           position = "fill", 
           color = "black",
           width = 0.5) + 

  geom_text(aes(label = scales::percent(..count../tapply(..count.., ..x.. ,sum)[..x..])),
            position = position_fill(vjust = 0.5),
            stat = "count") +
  coord_flip()