Elaine,

For panel.bwplot you see that the central dot and the outlier dots are
controlled by
the same pch argument.  I initially set the pch="|" to match your first
example with the horizontal
indicator for the median.  I would be inclined to use the default circle
for the outliers and
therefore also for the median.

Rich

On Fri, Sep 28, 2012 at 7:13 AM, Sarah Goslee <sarah.goslee@gmail.com>wrote:

> I would guess that if you find the bit that says pch="|" and change it to
> pch=1 it will solve your question, and that reading ?par will tell you why.
>
> Sarah
>
> On Thursday, September 27, 2012, Elaine Kuo wrote:
>
> > Hello
> >
> > This is Elaine.
> >
> > I am using package lattice to generate boxplots.
> > Using Richard's code, the display was almost perfect except the outlier
> > shape.
> > Based on the following code, the outliers are vertical lines.
> > However, I want the outliers to be empty circles.
> > Please kindly help how to modify the code to change the outlier shapes.
> > Thank you.
> >
> > code
> > package (lattice)
> >
> > dataN <- data.frame(GE_distance=rnorm(260),
> >
> >                     Diet_B=factor(rep(1:13, each=20)))
> >
> > Diet.colors <- c("forestgreen", "darkgreen","chocolate1","darkorange2",
> >
> >                  "sienna2","red2","firebrick3","saddlebrown","coral4",
> >
> >                  "chocolate4","darkblue","navy","grey38")
> >
> > levels(dataN$Diet_B) <- Diet.colors
> >
> > bwplot(GE_distance ~ Diet_B, data=dataN,
> >
> >        xlab=list("Diet of Breeding Ground", cex = 1.4),
> >
> >        ylab = list(
> >
> >          "Distance between Centers of B and NB Range (1000 km)",
> >
> >          cex = 1.4),
> >
> >        panel=panel.bwplot.intermediate.hh,
> >
> >        col=Diet.colors,
> >
> >        pch=rep("|",13),
> >
> >        scales=list(x=list(rot=90)),
> >
> >        par.settings=list(box.umbrella=list(lty=1)))
> >
> >         [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help@r-project.org <javascript:;> 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.
> >
>
>
> --
> Sarah Goslee
> http://www.stringpage.com
> http://www.sarahgoslee.com
> http://www.functionaldiversity.org
>
>         [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help@r-project.org 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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