[R] Grouped bwplots?

hadley wickham h.wickham at gmail.com
Sat Feb 21 22:52:36 CET 2009

On Fri, Feb 20, 2009 at 3:57 PM, Fredrik Karlsson <dargosch at gmail.com> wrote:
> Dear list,
> I am sorry for asking you this, but I am trying to do again what I
> thought I have done before, although this time it does not work.
> So, given the data set:
>> testdf <- data.frame(grfak=sample(c("One","Two"),size=100,replace=TRUE), panfak= sample(c("Yes","No"),size=100,replace=TRUE), xfak= sample(c("Yep","Nope"),size=100,replace=TRUE),  d=rnorm(100))
> I would like to do:
>> bwplot(d ~ xfak | panfak,data=testdf, groups= grfak)
> where the groups argument makes a difference (as in dividing each box
> into two by group).
> Is this possible to do? If so, what I am doing wrong?

An alternative approach is to use ggplot2:

qplot(xfak, d, data=testdf, facets = ~panfak, fill = grfak, geom="boxplot")


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