
It may be as simple as setting par(xpd=NA) see ?par for what that does.

If you want more control (prevent the line from going through titles, etc) then look at the examples for the cnvrt.coords function in the TeachingDemos package.

Hope this helps,

-----Original Message-----
From: r-help-bounces@stat.math.ethz.ch on behalf of Thomas Hoffmann
Sent: Mon 5/29/2006 10:10 AM
To: r-help@stat.math.ethz.ch
Subject: [R] line over multiplot
 
Dear Listmembers,

I do have a multiplot with 1 row and 4 columns (4 scatter plots with 
same x- and y-axe plotted in one row). I would like to draw a horizontal 
line across the whole multiplot at a certain y-value. Unfortunately the 
normal abline command stops between the plot.

I hope my problem is clear and there is somebody who can help me

Thanks in advance
Thomas H.

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