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

From: Jiantao Shi <bioconductor.cn_at_gmail.com>
Date: Sat 22 Jul 2006 - 21:50:19 EST

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.

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 23:05:14 2006

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