[R] identify with boxplot

John Fox jfox at mcmaster.ca
Thu Feb 21 00:40:17 CET 2002


Dear Remigijus,

At 09:59 PM 2/20/2002 +0100, Remigijus Lapinskas wrote:

>In a toy example below, there are some outliers which I would like to
>mark with their rownames. However, it seems that identify(...) does
>not work together with boxplot?
>
>set.seed(1)
>x<-data.frame(rcauchy(20))
>rownames(x)<-letters[1:20]
>boxplot(x)
>identify(x,labels=rownames(x))

You need to supply horizontal coordinates to identify -- e.g.,

 > set.seed(1)
 > x<-rcauchy(20)
 > names(x)<-letters[1:20]
 > boxplot(x)
 > identify(rep(1,20), x, labels=names(x))

(If you want to get row names from a data frame, that would work too.)

John

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