[R] Boxplot Labels OK
Jose.Iparraguirre at ageuk.org.uk
Wed Apr 10 11:19:09 CEST 2013
In this case, use the car package and run the following:
> bp <- Boxplot(DATA$ave, data= DATA, main= "Average Size", labels=DATA$num, Id.method=c("y"))
This will print out the labels 211 & 225 beside the outlier points. As you can see, the instruction assigns the values in the num column in the DATA data frame to the labels.
If you prefer the interactive option, replace id.method=c("y") with id.method=c("identify")
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From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Beatriz González Domínguez
Sent: 09 April 2013 17:32
To: r-help-owner at r-project.org; R Help 1; R Help 2
Subject: [R] Boxplot Labels OK
I have just sent an enquiry but probably I hadnâ€™t expressed myself properly.
Could anyone help me with the following?
When I run the code on my data I get a boxplot with outliers identified by numbers 200 & 201.
However, what I would like is to label these outliers with their corresponding â€œDATA$numâ€? values of the data frame.
In this example, the outliers should be labelled as: 211 & 225
Do you have any idea of how I could do this?
Please, if you need any more details just get in touch.
Many thanks in advance!
## R CODE
num <- as.numeric(200:225)
ave <- c(0.5, 1, 1.6, 2, 2, 2.3, 2.5, 2.4, 3, 3.2, 3.3, 7.2, 4, 4.8, 3.5, 2.7, 3.1, 2.8, 4.1, 2.0, 2.5, 2.1, 3.4, 2.5, 2.6, 7) DATA <- data.frame(cbind(num, ave)) rm(num, ave)
bp <- boxplot(DATA$ave, data= DATA, main= "Average Size") identify(x= bp$group, y= bp$out, labels= DATA$num, cex = 0.7)
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