R: ggplot stacked bar chart with counts on y axis but percentage as label

Question

I\'m looking for a way to label a stacked bar chart with percentages while the y-axis shows the original count (using ggplot). Here is a MWE for the plot without labels:

Answer 1

I agree with Johanna. You could try:

d <- aggregate(.~region+species, df, length)
d$percent <- paste(round(ID/sum(ID)*100),'%',sep='')
ggplot(d, aes(region, ID, fill=species)) + geom_bar(stat='identity') + 
  geom_text(position='stack', aes(label=paste(round(ID/sum(ID)*100),'%',sep='')), vjust=5)