On 03/22/2011 06:30 PM, Chandra Salgado Kent wrote:
Hello,
I'm wondering if someone may be able to help me, and do apologize if there is a
simple and obvious solution for this. I am somewhat new to R, and have been
searching for a simple solution for a couple of days.
I am interested in finding a tool that allows me to plot a stacked bar plot.
My data set is in the following format:
data<-data.frame(Sex=c("M","F","M","F","F"), Number=c(10,3,1,2,3),
Group_size=c(1,1,2,2,2))
I would like to have the factor "Sex" stacked, "Group size" as a Factor on the X axis,
and "Number" on the Y axis (summed so that there is only one value for each Sex by Group_size
combination).
Hi Chandra,
It's a bit hard to work out exactly what you want, but try this:
barplot(matrix(c(10,3,NA,1,2,3),ncol=2),col=c("lightblue","pink","pink"),
names.arg=1:2,xlab="Group size",ylab="Number",main="Group Sex")
legend(1.6,8,c("Male","Female"),fill=c("lightblue","pink"))
now I have fudged a bit by just making the matrix contain the values in
the right order, but if the barplot is what you want, it could get you
started.
Jim
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