Re: [R] How to add a line on the boxplot

From: Uwe Ligges <ligges_at_statistik.uni-dortmund.de>
Date: Sat 22 Jul 2006 - 22:12:39 EST

Jiantao Shi wrote:

> Thanks
> The first method,i get many lines,using the second,i get segments.I 
> actually
> need one line with y coordinate defined by aline,x along the boxplot.

Do you mean lines(aline)?
If not, please explain in another way how you want to arrange those 10 values and make lines from it.

Uwe Ligges

> 
> On 7/22/06, Uwe Ligges <ligges@statistik.uni-dortmund.de> wrote:

>>
>> Jiantao Shi wrote:
>>
>> > Hi,
>> > I have a data frame,
>> >
>> >
>> >>df=rnorm(1000)
>> >>dim(df)=c(100,10)
>> >>
>> >
>> > And i can get the boxplot,
>> >
>> >
>> >>boxplot(data.frame(df))
>> >
>> >
>> >
>> > So how can add a line (aline) on the existing boxplot,eg,
>> >
>> >
>> > Thanks in advance.
>>
>> Example:
>>
>>
>> df <- rnorm(1000)
>> dim(df) <- c(100,10)
>> boxplot(data.frame(df))
>> aline <- apply(df, 2, max)
>>
>> # , now you might want either
>> abline(h = aline, col = "green", lty="dotted")
>> # or
>> segments(seq(along = aline) - 0.2, aline,
>> seq(along = aline) + 0.2, aline,
>> lwd = 2, col = "red")
>>
>>
>>
>> Uwe Ligges
>>
>>
>>
>>
>> > [[alternative HTML version deleted]]
>> >
>> > ______________________________________________
>> > R-help@stat.math.ethz.ch mailing list
>> > https://stat.ethz.ch/mailman/listinfo/r-help
>> > PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> > and provide commented, minimal, self-contained, reproducible code.
>>
>>
>

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https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Received on Sat Jul 22 22:15:20 2006

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