R help - Sep 2009 - putting reference lines or grids into the background of a plot

Dear R-community,

using R.2.9.1, how do you put reference lines or grids into the _background_ of
a plot?
For example:

barplot(3:1)
abline(h = seq(0.5, 2.5 ,0.5), col = "red", lty = "dashed")

-> The lines are before the bars (and the line parts going through the bars
might be considered as "chart junk", I suppose).

Now, in this toy example I could just do the plot again to get the desired
result:

barplot(3:1, add = TRUE)

But is that really in general the "natural" way to do this?
Maybe I am just missing some graphical parameter that I could change (though I
was not able to find one)...

Thanks,
Heinrich.

Hi,

You may find some inspiration here:

http://wiki.r-project.org/rwiki/doku.php?id=tips:graphics-misc:ggplot2theme_inbase

HTH,

baptiste


2009/9/3 RINNER Heinrich <HEINRICH.RINNER@tirol.gv.at>
> Dear R-community,
>
> using R.2.9.1, how do you put reference lines or grids into the
> _background_ of a plot?
> For example:
>
> barplot(3:1)
> abline(h = seq(0.5, 2.5 ,0.5), col = "red", lty =
"dashed")
>
> -> The lines are before the bars (and the line parts going through the
bars
> might be considered as "chart junk", I suppose).
>
> Now, in this toy example I could just do the plot again to get the desired
> result:
>
> barplot(3:1, add = TRUE)
>
> But is that really in general the "natural" way to do this?
> Maybe I am just missing some graphical parameter that I could change
> (though I was not able to find one)...
>
> Thanks,
> Heinrich.
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>


-- 
_____________________________

Baptiste Auguié

School of Physics
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK

http://newton.ex.ac.uk/research/emag
______________________________

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