On 02/24/2013 03:06 AM, Melanie Zoelck wrote:
Dear R Help Members,
I need to draw a pie chart for someone and there are 3 small slices in it
identifying different species, all 0.7%, who’s labels overlap so you cannot
read them. Is there a way to have only 1 label the three slices, so as to merge
the three labels into one without merging the 3 slices? Alternatively, is there
a way to extend the pointing lines, so that they could be different heights so
as to avoid the overlap.
Hi Melanie,
Depending upon how much overlap there is, you might be able to use the
floating.pie (plotrix) function:
species.pct<-c(50,30,14,3,2,1)
species.names<-c("Homo sapiens","Pan troglodytes",
"Gorilla gorilla","Yeti\nasiaticus","Megapodus\nsasquatch",
"Gargantua\neuropaceae")
library(plotrix)
par(mar=c(5,2,4,3))
plot(0,xlim=c(-1,1),ylim=c(-1,1),axes=FALSE,type="n",xlab="",ylab="")
radpos<-floating.pie(0,0,species.pct,radius=0.8)
radpos[4:6]<-c(5.95,6.1,6.25)
pie.labels(0,0,radpos,species.names,radius=1)
If this is not enough, I think Uwe's suggestion would work.
Jim
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