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<title>ploticus: processdata prefab</title>
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<td><br><h2>processdata prefab</h2></td>
<td align=right>
<small>
<a href="../doc/welcome.html"><img src="../doc/ploticus.gif" border=0></a><br>
Version 2.41 Mar2009
</small><br><a href="../doc/prefabs.html">Prefabs</a>
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<br>
<br>
<title>Manual page for processdata_prefab(PL)</title>
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<h2>EXAMPLES</h2>
<p>
<tt>cat mydata | pl -prefab processdata action=rotate</tt>
<p>
<tt>pl -prefab processdata data=mydata action=count fields="2 3"</tt>
<br><br><br>
<h2>DESCRIPTION</h2>
<tt>processdata</tt> is a
<a href="prefabs.html">
prefab
</a>
that allows ploticus to operate as a data processing filter, to perform
various manipulations, such as summations. The result data is written
to standard output. No plotting is done.<tt> </tt>
<p>
The various manipulations that can be done are described on the
<a href="processdata.html">
proc processdata man page
</a>
under the <b>action</b> attribute.<tt> </tt>
<br><br><br>
<h2>PARAMETERS</h2>
<dl>
<dt> <dd>
The only
<a href="prefab_stdparms.html">
standard prefab parameters
</a>
supported are <b>data</b>, and the parameters pertaining to the data file.<tt> </tt>
By default, <b>data</b> is <tt>-</tt> (read from standard input).<tt> </tt>
<br><br>
<dt> <dd>
<b>action</b> is the data manipulation action to be performed. This parameter is mandatory.<tt> </tt>
See the
<a href="processdata.html">
proc processdata man page
</a>
<b>action</b> attribute for allowable actions and the descriptions.<tt> </tt>
<br><br>
<dt> <dd>
<b>fields</b> specifies one or more
<a href="attributetypes.html#dfield">
data fields
</a>
to be involved in the operation.<tt> </tt>
<br>
<br>
</td></tr>
<td align=right>
<a href="../doc/welcome.html">
<img src="../doc/ploticus.gif" border=0></a><br><small>data display engine <br>
<a href="../doc/Copyright.html">Copyright Steve Grubb</a>
<br>
<br>
<center>
<img src="../gallery/all.gif">
</center>
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<br>
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Ploticus is hosted at http://ploticus.sourceforge.net</td><td> </td><td>
<a href="http://sourceforge.net/projects/ploticus"><img src="http://sflogo.sourceforge.net/sflogo.php?group_id=38453&type=12"
width="120" height="30" border="0"
alt="Get ploticus data display engine at SourceForge.net. Fast, secure and Free Open Source software downloads" /></a>
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