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<title>ploticus: examples using heatmap prefab</title>
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<td><br><h2>Examples using heatmap prefab</h2></td>
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<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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<title>Manual page for Examples_using_heatmap_prefab(PL)</title>
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<p>
These examples use the
<a href="prefab_heatmap.html">
heatmap prefab
</a>
and are included in the distribution (<tt>./pltestsuite/testpf_heatmap</tt>).<tt> </tt>
<a href="prefab_gallery.html">
Gallery of ALL prefab examples
</a>
<br><br><br>
<h2>heatmap example 1</h2>
<img src="../gallery/prefab_img/heatmap1.gif">
<p>
<pre>
pl -prefab heatmap data=curve1.dat y=1 x=2
The curve1.dat file looks like this:
331 75
331.624 83.5518
332.105 88.7758
332.492 91.8638
..etc.
</pre>
<p>
The heatmap prefab's basic mode is to count instances. Here, the bin sizes
in x and y are automatically determined, as is the breakdown for color coding.<tt> </tt>
Default color scheme is used.<tt> </tt>
These can all be given explicitly if desired.<tt> </tt>
In this example, both X and Y are numeric.<tt> </tt>
<br><br><br>
<h2>heatmap example 2</h2>
<img src="../gallery/prefab_img/heatmap2.gif">
<pre>
pl -prefab heatmap data=snpmap.dat header=yes y=1 x=2 ycats=yes xbinsize=5 \
colorlist=white,limegreen,green,teal,blue,purple,black
</pre>
<p>
Counting instances again. In this example X is categorical and Y is numeric, and
a user-supplied x binsize and color scheme was used. Y bin size and color breakdown
are automatically determined.<tt> </tt>
<br><br><br>
<h2>heatmap example 3</h2>
<img src="../gallery/prefab_img/heatmap3.gif">
<pre>
pl -prefab heatmap data=data26 x=1 xcats=yes y=2 ycats=yes contentfield=3 \
outline="color=black width=5"
The data26 file looks like this:
CL PNG 44
CL SVG 38
CL SWF 26
CL PS 54
CGI PNG 37
...
</pre>
<p>
In this example, instead of counting instances, a predetermined value (<tt>contentfield=3</tt>) is used
to set cell color. Both X and Y are categorical. The cells are separated by thicker
black lines.<tt> </tt>
<br><br><br>
<h2>heatmap example 4</h2>
<img src="../gallery/prefab_img/heatmap4.gif">
<pre>
pl -prefab heatmap data=data26 x=1 xcats=yes y=2 ycats=yes contentfield=3 \
symbol="shape=circle radius=0.1" legendsep=0.2 zerocolor=white
</pre>
<p>
Same as example 3 but circles are used for cells, and background is white.<tt> </tt>
<br>
<br>
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<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>
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<img src="../gallery/all.gif">
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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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