[R] Barchart to make a graph like this??

Andrew C. Ward s195404 at student.uq.edu.au
Wed May 14 00:47:58 CEST 2003

Ken, I actually asked about doing this on the list sometime ago
and received a number of very useful suggestions. If you search
the archives for "Christmas tree graphs" you'll discover all you
need to know (and more).


Andrew C. Ward

CAPE Centre
Department of Chemical Engineering
The University of Queensland
Brisbane Qld 4072 Australia
andreww at cheque.uq.edu.au

Quoting Deepayan Sarkar <deepayan at stat.wisc.edu>:

> On Tuesday 13 May 2003 03:00, knussear at biodiversity.unr.edu
> wrote:
> > Hi list,
> >
> > I'm trying to get R to make a graph like the one shown in
> this pdf, where
> > males are white bars and females are black bars.
> >
> > http://www.brrc.unr.edu/~knussear/mmgraph.pdf
> >
> > I tried barchart, but I couldnt get the bars to share a
> common x axis.
> I'm assuming by this you mean barchart in the lattice package.
> > Do you have any suggestions?
> Some information on the form of your data would have helped.
> This is not the standard form of a barchart, so you need to
> fudge some things. 
> First of all, make the values in one of the groups (the ones
> you want on the 
> left) negative. Then barchart with groups (or use + in the
> formula, depending 
> on the form of your data), stack=TRUE should give you what you
> want. Of 
> course, the axis labels will be negative, you need to control
> those using 
> scales.
> HTH,
> Deepayan
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