[R] stacked bar plot

[Ista Zahn]

Hi Chandra,
You could use ggplot2:

library(ggplot2)
ggplot(dat, aes(Group_size, Number, fill=Sex)) +
  geom_bar(stat="summary", fun.y="mean")

Best,
Ista

On Tue, Mar 22, 2011 at 7:30 AM, Chandra Salgado Kent
<C.Salgado at cmst.curtin.edu.au> 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).
>
>
>
> Many, many thanks for any help you may be able to offer!
>
>
>
> Chandra
>
>
>        [[alternative HTML version deleted]]
>
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-- 
Ista Zahn
Graduate student
University of Rochester
Department of Clinical and Social Psychology
http://yourpsyche.org