How to label percentage values inside stacked bar plot using R-base
On 02/18/2013 06:05 PM, nay-nancy Laiser wrote:
Hello, I am new to R. I would like others to explain to me how to add
absolute values inside the individual stacked bars in a consistent way
using the basic R plotting function (R base). I tried to plot a stacked bar
graph using R base but the values appear in an inconsistent/illogical way
in such a way that its supposed to be 100% for each village but they don't
sum up to 100%.
Here is the data that am working on:
Village 100 200 300 400 500
Male 68.33333 53.33333 70 70 61.66667
Female 31.66667 46.66667 30 30 38.33333
In summary, there are five villages and the data showing the head of
household interviewed by sex.
I have used the following command towards plotting the graph:
barplot(mydata,col=c("yellow","green")
x<-barplot(mydata,col=c("yellow","green")
text(x,mydata,labels=mydata,pos=3,offset=.5)
Please help to allocate the correct values in each bar
Thanks
Nay
Hi Nay,
You can label the plot you have done above like this:
mydata<-matrix(c(100,200,300,400,500,
68.33333,53.33333,70,70,61.66667,
31.66667,46.66667,30,30,38.33333),ncol=3)
colnames(mydata)<-c("Village","Male","Female")
xpos<-barplot(mydata,col=c("yellow","green"))
library(plotrix)
barlabels(rep(xpos,each=5),
apply(mydata,2,cumsum)-mydata/2,
labels=mydata,prop=1,cex=0.7)
However, the plot is pretty redundant and you might want to consider
other ways of presenting the data.
Jim