From mcw@ln.nimh.nih.gov  Mon Nov 15 21:08:06 1999
From: mcw@ln.nimh.nih.gov (mcw@ln.nimh.nih.gov)
Date: Mon, 15 Nov 1999 22:08:06 +0100 (MET)
Subject: xlim, ylim problem in barplot (PR#325)
Message-ID: <199911152108.WAA09550@pubhealth.ku.dk>

Hi, all.

The lower bound in a barplot (or the left bound if you're making a
horizontal barplot) is -0.01 no matter what.  This causes problems if
you're making a barplot of small values (say, < .001), as most of the plot
is taken up with blank space beneath the axis, and the bars are squeezed
in at the top.  The fix seems to be simple: replace lines

41:      xlim <- range(-0.01, height) 
59:      ylim <- range(-0.01, height)

by the following:

41:      xlim <- range(max(-0.01, -0.01 * height), height) 
59:      ylim <- range(max(-0.01, -0.01 * height), height)

This seems to work for small negative numbers as well.

Thanks again for the software.

Matt Wiener


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xlim, ylim problem in barplot (PR#325)
mcw@ln.nimh.nih.gov