Labeling outliers on boxplot in R

r label boxplot outliers
user1836894 picture user1836894 · Mar 3, 2013 · Viewed 34.6k times · Source

I would like to plot each column of a matrix as a boxplot and then label the outliers in each boxplot as the row name they belong to in the matrix. To use an example:

vv=matrix(c(1,2,3,4,8,15,30),nrow=7,ncol=4,byrow=F)
rownames(vv)=c("one","two","three","four","five","six","seven")
boxplot(vv)

I would like to label the outlier in each plot (in this case 30) as the row name it belongs to, so in this case 30 belongs to row 7. Is there an easy way to do this? I have seen similar questions to this asked but none seemed to have worked the way I want it to.

Answer

user4168562 picture user4168562 · Oct 22, 2014

There is a simple way. Note that b in Boxplot in following lines is a capital letter. 

library(car)

Boxplot(y ~ x, id.method="y")

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