[R] plotting box plots on same x

Uwe Ligges
Fri, 27 May 2005 14:52:42 -0000

BJ wrote:
> I am trying to construct a graph of 6 box plots of blood pressures. I
> want them to be on a single set of axis and I want the SBP to be ontop
> of the DBP. I have an array bp with the data in it and I tried


Folks, please invest 1 minute of time to rethink whether other people
will understand your question!

What is "SBP", "DBP", and where are the "6"
boxplots from?

> a[1,]<-c(145,60,147,62,140,57)

"a" must already be defined here, or we cannot replace a column!

> a[2,]<-c(160,75,160,74,160,70)
> a[3,]<-c(140,55,140,65,142,55)
> boxplot(data.frame(a), main = "Blood Pressures",
at=c(1,1,2,2,3,3),
>
names=c("sit","","lie","","stand",""))
>
> which is close to what I want, but it gives me a bunch of empty space at
> the end. is there a better way to do this to avoid this?

Well, the first point is that you should write questions that you would
understand yourself. In a next step you might find someone who is able
to answer it ....

> As always, Thank You. ~Erithid

"As always"? Does not sound very enthusiastic ...


Uwe Ligges



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