ggplot2 violin plot: fill central 95% only?

Question

ggplot2 can create a very attractive filled violin plot:

ggplot() + geom_violin(data=data.frame(x=1, y=rnorm(10 ^ 5)), 
    aes(x=x, y=y), fill=\'gray90\', c         


        

Answer 1

Just make a selection first. Proof of concept:

df1 <- data.frame(x=1, y=rnorm(10 ^ 5))
df2 <- subset(df1, y > quantile(df1$y, 0.025) & y < quantile(df1$y, 0.975))

ggplot(mapping = aes(x = x, y = y)) + 
  geom_violin(data = df1, aes(fill = '100%'), color = NA) +
  geom_violin(data = df2, aes(fill = '95%'), color = 'black') +
  theme_classic() + 
  scale_fill_grey(name = 'level')