M. Shiham Adam wrote:
Dear R-Community.
I am trying show pie charts on a graph. To be precise, I have series of catch calues by species by geographic (5 deg by 5 deg) regions. I want to draw circles (actually pie charts showing the proportion of the catch in each area) so that I have a graph of catch by species by geographic area!
I know there is the < symbols(dat$lon,dat$lat,circles = dat$sp1, add=TRUE) > but I need pie charts instead of the simple circle!
Here is some data
Examples can be found, e.g., in
@Article{Rnews:Murrell:2003,
author = {Paul Murrell},
title = {Integrating grid Graphics Output with Base Graphics
Output },
journal = {R News},
year = 2003,
volume = 3,
number = 2,
pages = {7--12},
month = {October},
url = {http://CRAN.R-project.org/doc/Rnews/}
}and Paul's talk at the useR! (Slides available at http://www.ci.tuwien.ac.at/Conferences/useR-2004/Keynotes/Murrell.pdf).
Uwe Ligges
dat
lon lat sp1 sp2 sp3
1 20 50 2 6 10
2 20 55 370 20 23
3 20 60 380 40 23
4 20 65 60 100 87
5 25 50 0 0 98
Any help would be much appreciated
Shiham Adam
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