Ggplot2 extreme value labels in geom_boxplot

I try to add labels to geom_boxplot for extreme values ​​using dplyr and I get inconsistency with either ggplot or dplyr. what am I doing wrong?

#toy exmaple
df=rbind(data.frame(id=rep("1",100),var=paste0("V",seq(1,100)),val=rnorm(100,0,5)),
         data.frame(id=rep("2",100),var=paste0("V",seq(1,100)),val=rnorm(100,0,3))) 

#subset with extreme values
df_bound=df%.%group_by(id)%.%filter(val<quantile(val,.025)|val>quantile(val,.975))

#plot 
ggplot(df,aes(x=id,y=val,fill=id,label=var))+geom_boxplot()+
geom_point(aes(group=id),data=df_bound)+
geom_text(aes(group=id),data=df_bound,hjust=-1,size=4)
+1
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1 answer

this is the solution to the problem:

df=rbind(data.frame(id=rep("1",100),var=paste0("V",seq(1,100)),val=rnorm(100,0,5)),
         data.frame(id=rep("2",100),var=paste0("V",seq(1,100)),val=rnorm(100,0,3)))

#new code
df_bound=df%.%group_by(id)%>%do(.,data.frame(val=boxplot.stats(.$val)$out))
df_bound=left_join(df_bound,df,by=c("id","val"))

ggplot(df,aes(x=id,y=val,fill=id,label=var))+geom_boxplot()+
geom_point(aes(group=id),data=df_bound)+
geom_text(aes(group=id),data=df_bound,hjust=-1,size=4)
+2
source

Source: https://habr.com/ru/post/1589196/


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