Re: clustered boxplots

[Chuck Cleland <ccleland@optonline.net>]

Susan:
  How about something like this?

mydata <- data.frame(Y1 = rnorm(30), Y2 = rnorm(30),
                     Y3 = rnorm(30),
                     GROUP = rep(c("A", "B", "C"), c(10,10,10)))

par(mfrow=c(1,3))
boxplot(split(mydata$Y1, mydata$GROUP)); title("Y1")
boxplot(split(mydata$Y2, mydata$GROUP)); title("Y2")
boxplot(split(mydata$Y3, mydata$GROUP)); title("Y3")

hope this helps,

Chuck Cleland

susan@stats.ucl.ac.uk wrote:
> I am trying to do a boxplot of 3 outcomes ( for 3 groups) on the same
> graph and having some trouble. My data is of the form y2, y2, y3 are
> vectors and x is vecots with the groups.
>
> Can anyone point me in the right direction.
--
Chuck Cleland, Ph.D.
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