Hi Alan,
Yes it is, but you need to do a bit work. There are different approaches.
Look at the at= option under
?bxp
and draw your boxplots with something like:
boxplot(y ~ as.numeric(as.factor(grp)), at=c(0.5, 2, 2.5, 3), xaxt="n", ...)
axis(side=1, at=c(0.5, 2, 2.5, 3), labels=c("0.5","2","2.5","3"))
This should do it, and is perhaps the easiest route. There may be something
missing, because I don't have a concrete example. Anyhow, you should be
able to fill in the gaps.
HTH,
Mark.
Alan Barnett wrote:
>
> I have some data consisting of multiple trials of an experiment with
> different values of an independent variable. If I run
> R> plot(var,result)
> I get a scatterplot of result versus the independent variable var.
> If I run
> R> plot(as.factor(var),result)
> I get a boxplot of the distribution of result for each value of var. In
> this plot, each boxplot is labeled by the corresponding value of var,
> but the absissas are evenly spaced.
> Is it possible to generate a boxplot with the absissas of each boxplot
> equal to the corresponding value of var?
>
> --
> Alan Barnett, PhD
> Imaging Physicist
> National Institutes of Health
> NIMH/CBDB
> 301 402 3507
>
> ______________________________________________
> R-help@r-project.org mailing list
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> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
>
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