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dataViewport.html
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dataViewport.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><title>R: Create a Viewport with Scales based on Data</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<link rel="stylesheet" type="text/css" href="R.css">
</head><body>
<table width="100%" summary="page for dataViewport"><tr><td>dataViewport</td><td align="right">R Documentation</td></tr></table>
<h2> Create a Viewport with Scales based on Data </h2>
<h3>Description</h3>
<p>This is a convenience function for producing a viewport with
x- and/or y-scales based on numeric values passed to the function.
</p>
<h3>Usage</h3>
<pre>
dataViewport(xData = NULL, yData = NULL, xscale = NULL,
yscale = NULL, extension = 0.05, ...)
</pre>
<h3>Arguments</h3>
<table summary="R argblock">
<tr valign="top"><td><code>xData</code></td>
<td>
<p> A numeric vector of data. </p>
</td></tr>
<tr valign="top"><td><code>yData</code></td>
<td>
<p> A numeric vector of data. </p>
</td></tr>
<tr valign="top"><td><code>xscale</code></td>
<td>
<p> A numeric vector (length 2). </p>
</td></tr>
<tr valign="top"><td><code>yscale</code></td>
<td>
<p> A numeric vector (length 2). </p>
</td></tr>
<tr valign="top"><td><code>extension</code></td>
<td>
<p> A numeric. If length greater than 1, then
first value is used to extend the xscale and second value
is used to extend the yscale.
</p>
</td></tr>
<tr valign="top"><td><code>...</code></td>
<td>
<p> All other arguments will be passed to a call to
the <code>viewport()</code> function. </p>
</td></tr>
</table>
<h3>Details</h3>
<p>If <code>xscale</code> is not specified then the values in <code>x</code> are
used to generate an x-scale based on the range of <code>x</code>, extended
by the proportion specified in <code>extension</code>. Similarly for the
y-scale.
</p>
<h3>Value</h3>
<p>A grid viewport object.
</p>
<h3>Author(s)</h3>
<p> Paul Murrell </p>
<h3>See Also</h3>
<p><code>viewport</code> and
<code>plotViewport</code>.
</p>
</body></html>