Message-ID: <49C3D099.5080202@uke.uni-hamburg.de>
Date: 2009-03-20T17:21:29Z
From: Eik Vettorazzi
Subject: how can I find actual axis limits for an existing plot?
In-Reply-To: <49C3ABD1.3050709@molbio.mgh.harvard.edu>
Hi,
see ?par
You are probably interested in par("usr")
Mark Borowsky schrieb:
> I would like to query an existing plot to learn the actual x and y
> limits of the plottable area. Is this possible? I can discover the
> extreme tick mark locations but not the actual plot area limits.
> Setting the limits with ylim will not help in this case because I am
> overplotting an existing plot with a separate function, and I don't
> want my end-user to have to pass parameters around.
>
> Thanks,
> Mark
>
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