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<title>ploticus: proc rangesweep</title>
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<td><br><h2>proc rangesweep</h2></td>
<td align=right>
<small>
<a href="Welcome.html"><img src="ploticus.gif" border=0></a><br>
<a href="Welcome.html">Welcome</a>
<a href="../gallery/index.html">Gallery</a>
<a href="Contents.html">Handbook</a>
<td></tr></table>
</td></tr>
<td>
<br>
<br>
<title>Manual page for proc_rangesweep(PL)</title>
</head>
<body>
<center>
<img src="../gallery/rangesweep0.gif">
</center>
<h2>DESCRIPTION</h2>
<b>proc rangesweep</b> draws a moving range.<tt> </tt>
The plot is drawn beginning with first data record, working to the last one.<tt> </tt>
<h2>EXAMPLES</h2>
See the Gallery Rangesweep page
<a href="../gallery/gall.rangesweep.html"><img src="../gallery/btn/here.gif"></a>
<h2>UNPLOTTABLE DATA</h2>
Invalid values are skipped;
the rangesweep will be drawn to connect only the points corresponding to plottable
values. Points lying outside of the plotting area are displayed if possible.<tt> </tt>
<h2>PREREQUISITES</h2>
A plotting area must be set up using <b>proc areadef</b>
and <b>proc getdata</b> must be executed to
access or define some data.<tt> </tt>
The data must be ordered in X.<tt> </tt>
<h2>MODES</h2>
This proc can operate in one of these modes:
<p>
<b>Y only (points "where they fall"):</b>
<dl>
<dt><dd><p>
By not specifying <tt>xfield</tt>, range values are shown
at consecutive unit locations in X.<tt> </tt>
</dl>
<p>
<b>X, Y:</b>
<dl>
<dt><dd><p>
By specifying <tt>xfield</tt> as well as <tt>lofield</tt> and <tt>hifield</tt>,
range values are shown at given X, Y locations in the data.<tt> </tt>
</dl>
<h2>MANDATORY ATTRIBUTE</h2>
The <tt>lofield</tt> and <tt>hifield</tt> attributes MUST be specified.<tt> </tt>
<h2>ATTRIBUTES</h2>
<p>
<b>lofield</b>
<a href="attributetypes.html#dfield">
<i> dfield </i>
</a>
<dl>
<dt><dd><p>
Data field to use for low end of range.<tt> </tt>
Example: <tt>lofield: 1</tt>
</dl>
<p>
<b>hifield</b>
<a href="attributetypes.html#dfield">
<i> dfield </i>
</a>
<dl>
<dt><dd><p>
Data field to use for high end of range.<tt> </tt>
Example: <tt>hifield: 2</tt>
</dl>
<p>
<b>xfield</b>
<a href="attributetypes.html#dfield">
<i> dfield </i>
</a>
<dl>
<dt><dd><p>
Data field to use for X values.<tt> </tt>
If not specified, sequential unit locations in X will be used.<tt> </tt>
Example: <tt>xfield: 1</tt>
</dl>
<p>
<b>color</b>
<a href="color.html">
<i> color </i>
</a>
<dl>
<dt><dd><p>
Color of the range sweep.<tt> </tt>
Example: <tt>color: powderblue</tt>
</dl>
<p>
<b>legendlabel</b>
<a href="attributetypes.html#text">
<i> text </i>
</a>
<dl>
<dt><dd><p>
A label to be associated with the current range sweep in the legend.<tt> </tt>
<b>proc legend</b> must be executed later in order to
render the legend.<tt> </tt>
<br>
Example: <tt>legendlabel: Group A</tt>
</dl>
<p>
<b>sweeprange</b> <i>xlo</i> [<i>xhi</i>]
<dl>
<dt><dd><p>
If specified, range will be rendered only at x values falling between
<i>xlo</i> and <i>xhi</i>. <i>xlo</i> and <i>xhi</i> must be plottable
values in X. If <i>xhi</i> is not given then this will control
only the lower bound.<tt> </tt>
<br>
Example: <tt>sweeprange: 5 24</tt>
</dl>
<p>
<b>xstart</b>
<a href="attributetypes.html#plotvalue">
<i> plotvalue </i>
</a>
<dl>
<dt><dd><p>
If specified, and if using sequential locations in x (<tt>xfield</tt> not
specified), determines where in X the range will start.<tt> </tt>
</dl>
<p>
<b>select</b>
<a href="condex.html">
<i> conditional-expression </i>
</a>
<dl>
<dt><dd><p>
If specified, the <i>select-expression</i> will be used to determine
whether or not to plot a given row of data.<tt> </tt>
<br>
Example: <tt>select: @7 >= @9</tt>
<br>
<br>
</td></tr>
<td align=right>
<a href="Welcome.html">
<img src="ploticus.gif" border=0></a><br><small>data display engine <br>
<a href="Copyright.html">Copyright Steve Grubb</a>
<br>
<br>
<center>
<img src="../gallery/all.gif">
</center>
</td></tr>
</table>
</dl>
<p><hr>
Markup created by <em>unroff</em> 1.0, <tt> </tt> <tt> </tt>June 18, 2001.
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