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How to make the labels of pie chart are not overlapping?
4 messages · Tammy Ma, Bert Gunter, Ista Zahn +1 more
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On Fri, Mar 15, 2013 at 12:30 PM, Bert Gunter <gunter.berton at gene.com> wrote:
Simple -- don't make a pie chart.
This is great advice. But it you (or your boss) insists on pie charts,
then you should provide us with a reproducible example that
illustrates your problem.
dat <- read.table(text="Product predicted_MarketShare
Predicted_MS_Percentage
A 2.827450e-02 2.8
B 4.716403e-06 0.0
C 1.741686e-01 17.4
D 1.716303e-04 0.0",
header=TRUE)
pie(dat[[2]], labels=dat[[1]])
Does not give overlapping labels, so I don't yet have an example of
the problem you are trying to solve.
Best,
Ista
-- Bert (Seriously -- this is an awful display. Consider, instead, a bar plot plotting cumulative sums of percentages with products/bars ordered from largest percentage to smallest; or plotting just the percentages in that order, depending on which is more informative.) On Fri, Mar 15, 2013 at 6:58 AM, Tammy Ma <metal_licaling at live.com> wrote:
I have the following dataframe:
Product predicted_MarketShare Predicted_MS_Percentage
A 2.827450e-02 2.8
B 4.716403e-06 0.0
C 1.741686e-01 17.4
D 1.716303e-04 0.0
.......
Because there are so many products, and most of predicted Market share is
around 0%.
When I make pie chart, the labels of those product with 0% market share
are overlapping.
How do I make the labels are not overlapping?
Kind regards.
Tammy
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-- Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm [[alternative HTML version deleted]]
______________________________________________ R-help at 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.
On 03/16/2013 12:58 AM, Tammy Ma wrote:
I have the following dataframe: Product predicted_MarketShare Predicted_MS_Percentage A 2.827450e-02 2.8 B 4.716403e-06 0.0 C 1.741686e-01 17.4 D 1.716303e-04 0.0 ....... Because there are so many products, and most of predicted Market share is around 0%. When I make pie chart, the labels of those product with 0% market share are overlapping. How do I make the labels are not overlapping?
Hi Tammy,
Obviously you have many more products than are shown above. Let us
assume that their market share is distributed approximately as negative
binomial and your "C" value is the maximum. You might have twenty
products with market shares around:
market_share<-c(0,0,0,0,1,1,1,1,2,2,3,3,4,5,5,6,10,11,15,17)
names(market_share)<-LETTERS[1:20]
If you try to plot this as a pie chart:
pie(market_share)
you do get a bunch of overprinted labels for the four zero values. Pie
charts with more than four or five sectors are usually not the best way
to display the distribution of your values, but if you must:
par(mar=c(5,4,4,4))
pie(market_share,labels=c(rep("",4),names(market_share)[5:20]))
par(xpd=TRUE)
text(1.1,0,"A,B,C,D=0")
par(xpd=FALSE)
Good luck with it.
Jim