[R] Panel of pie charts

[Gavin Simpson]

On Tue, 2008-07-29 at 17:23 +0100, Richard.Cotton at hsl.gov.uk wrote:
> >   I am looking to making a panel of pie charts fo some of my 
> > dritribution data . I was wondering if there is a way in any R 
> > package to write a small script to do so.
> pie() will do you a one-off pie chart, but there is no equivalent using 
> grid/ lattice graphics.  You could write a panel.pie function to draw 
> them, but be warned: pie charts are almost never the best option for 
> displaying data.  (See 
> http://www.perceptualedge.com/articles/visual_business_intelligence/save_the_pies_for_dessert.pdf 
> for example.)  Have you considered using barcharts instead?

All concerns about pie charts aside, Deepayan has already done this for
you, as part of his excellent book, Lattice: Multivariate data
Visualization with R (2008) Springer, part of the UseR series.

Check out the book's website for the code to reproduce all the figures:

http://lmdvr.r-forge.r-project.org/figures/figures.html

in particular you should look at chapter 14, figure 14.5 and the
associated code, including panel functions, to reproduce this figure.

HTH

G
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