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<title>The mcx clcf manual</title>
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<body>
<p style="text-align:right">
16 May 2014&nbsp;&nbsp;&nbsp;
<a class="local" href="mcxclcf.ps"><b>mcx clcf</b></a>
14-137
</p>
<div class=" itemize " style="margin-top:1em; font-size:100%">
<div class=" item_compact"><div class=" item_rightalign nowrap " style="right:-3em">1.</div></div>
<div class=" item_text " style="margin-left:4em">
<a class="intern" href="#name">NAME</a>
</div>
<div class=" item_compact"><div class=" item_rightalign nowrap " style="right:-3em">2.</div></div>
<div class=" item_text " style="margin-left:4em">
<a class="intern" href="#synopsis">SYNOPSIS</a>
</div>
<div class=" item_compact"><div class=" item_rightalign nowrap " style="right:-3em">3.</div></div>
<div class=" item_text " style="margin-left:4em">
<a class="intern" href="#description">DESCRIPTION</a>
</div>
<div class=" item_compact"><div class=" item_rightalign nowrap " style="right:-3em">4.</div></div>
<div class=" item_text " style="margin-left:4em">
<a class="intern" href="#options">OPTIONS</a>
</div>
<div class=" item_compact"><div class=" item_rightalign nowrap " style="right:-3em">5.</div></div>
<div class=" item_text " style="margin-left:4em">
<a class="intern" href="#seealso">SEE ALSO</a>
</div>
</div>

<a name="name"></a>
<h2>NAME</h2>
<p style="margin-bottom:0" class="asd_par">
mcx_clcf &mdash; compute the clustering coefficient of a graph</p>

<a name="synopsis"></a>
<h2>SYNOPSIS</h2>
<p style="margin-bottom:0" class="asd_par">
<b>mcx&nbsp;clcf</b> [options] [matrix-file]</p>
<p style="margin-bottom:0" class="asd_par">mcxclcf is not in actual fact a program. This manual
page documents the behaviour and options of the mcx program when
invoked in mode <i>clcf</i>. The options <b>-h</b>, <b>--apropos</b>,
<b>--version</b>, <b>-set</b>, <b>--nop</b>, <b>-progress</b>&nbsp;<i>&lt;num&gt;</i>
are accessible
in all <b>mcx</b> modes. They are described
in the <a class="local sibling" href="mcx.html">mcx</a> manual page.</p>
<p style="margin-bottom:0" class="asd_par">
<b>mcx&nbsp;clcf</b>
<a class="intern" href="#opt-abc"><b>[-abc</b> &lt;fname&gt; (<i>specify label input</i>)<b>]</b></a>
<a class="intern" href="#opt-imx"><b>[-imx</b> &lt;fname&gt; (<i>specify matrix input</i>)<b>]</b></a>
<a class="intern" href="#opt-tab"><b>[-tab</b> &lt;fname&gt; (<i>use tab file</i>)<b>]</b></a>
<a class="intern" href="#opt-o"><b>[-o</b> &lt;fname&gt; (<i>write to this file</i>)<b>]</b></a>
<a class="intern" href="#opt-t"><b>[-t</b> &lt;int&gt; (<i>use &lt;int&gt; threads</i>)<b>]</b></a>
<a class="intern" href="#opt-J"><b>[-J</b> &lt;intJ&gt; (<i>a total of &lt;intJ&gt; jobs are used</i>)<b>]</b></a>
<a class="intern" href="#opt-j"><b>[-j</b> &lt;intj&gt; (<i>this job has index &lt;intj&gt;</i>)<b>]</b></a>
<a class="intern" href="#opt--summary"><b>[--summary</b> (<i>return mean clustering coefficient</i>)<b>]</b></a>
<a class="intern" href="#opt-h"><b>[-h</b> (<i>print synopsis, exit</i>)<b>]</b></a>
<a class="intern" href="#opt--apropos"><b>[--apropos</b> (<i>print synopsis, exit</i>)<b>]</b></a>
<a class="intern" href="#opt--version"><b>[--version</b> (<i>print version, exit</i>)<b>]</b></a>
</p>

<a name="description"></a>
<h2>DESCRIPTION</h2>
<p style="margin-bottom:0" class="asd_par">
<b>mcx&nbsp;clcf</b> computes the clustering coefficient of a graph.</p>
<p style="margin-bottom:0" class="asd_par">
The input graph/matrix, if specified with the <b>-imx</b> option, has to
be in mcl matrix/graph format. You can use label input instead by using the
<b>-abc</b> option.
Refer to <a class="local sibling" href="mcxio.html">mcxio</a> for a description of these two input formats.
By default <b>mcx&nbsp;diameter</b> reads from STDIN <i>and expects matrix format</i>.
To specify label input from STDIN use <b>-abc</b>&nbsp;<b>-</b>.</p>

<a name="options"></a>
<h2>OPTIONS</h2>
<div class=" itemize " style="margin-top:1em; font-size:100%">
<div class=" item_cascade"><div class=" item_leftalign nowrap " ><a name="opt-abc"></a><b>-abc</b> &lt;fname&gt; (<i>label input</i>)</div></div>
<div class=" item_text " style="margin-left:2em">
<p style="margin-top:0em; margin-bottom:0em">
The file name for input that is in label format.</p>
</div>
<div style="margin-top:0em">&nbsp;</div><div class=" item_cascade"><div class=" item_leftalign nowrap " ><a name="opt-imx"></a><b>-imx</b> &lt;fname&gt; (<i>input matrix</i>)</div></div>
<div class=" item_text " style="margin-left:2em">
<p style="margin-top:0em; margin-bottom:0em">
The file name for input. STDIN is assumed if not specified.</p>
</div>
<div style="margin-top:0em">&nbsp;</div><div class=" item_cascade"><div class=" item_leftalign nowrap " ><a name="opt-o"></a><b>-o</b> &lt;fname&gt; (<i>output file</i>)</div></div>
<div class=" item_text " style="margin-left:2em">
<p style="margin-top:0em; margin-bottom:0em">
The file name for output. STDOUT is the default output stream.
</p>
</div>
<div style="margin-top:0em">&nbsp;</div><div class=" item_cascade"><div class=" item_leftalign nowrap " ><a name="opt-tab"></a><b>-tab</b> &lt;fname&gt; (<i>use tab file</i>)</div></div>
<div class=" item_text " style="margin-left:2em">
<p style="margin-top:0em; margin-bottom:0em">
This option causes the output to be printed with the labels
found in the tab file.
With <b>-abc</b> this option will, additionally, construct
a graph only on the labels found in the tab file.
If this option is used in conjunction with <b>-imx</b> the
tab domain and the matrix domain are required to be identical.
</p>
</div>
<div style="margin-top:0em">&nbsp;</div><div class=" item_cascade"><div class=" item_leftalign nowrap " ><a name="opt--summary"></a><b>--summary</b> (<i>return mean clustering coefficient</i>)</div></div>
<div class=" item_text " style="margin-left:2em">
<p style="margin-top:0em; margin-bottom:0em">
By the default a 1-column table (with row names included) is output, one row
for each node. This option causes the output of the average clustering
coefficient only.
</p>
</div>
<div style="margin-top:0em">&nbsp;</div><div class=" item_cascade item_leftalign nowrap" ><a name="opt-t"></a><b>-t</b> &lt;int&gt; (<i>use &lt;int&gt; threads</i>)</div><div class=" item_cascade item_leftalign nowrap" ><a name="opt-J"></a><b>-J</b> &lt;intJ&gt; (<i>a total of &lt;intJ&gt; jobs are used</i>)</div><div class=" item_cascade item_leftalign nowrap" ><a name="opt-j"></a><b>-j</b> &lt;intj&gt; (<i>this job has index &lt;intj&gt;</i>)</div>
<div class=" item_text " style="margin-left:2em">
<p style="margin-top:0em; margin-bottom:0em">
Computing clustering coefficients is time-intensive
for large graphs. If you have multiple CPUs available consider using as
many threads. Additionally it is possible to spread the computation over
multiple jobs/machines.
These three options are described in the <a class="local sibling" href="clmprotocols.html">clmprotocols</a> manual page.
The following set of options, if given to as many commands, defines three jobs, each running four threads.
</p>
<div class="verbatim">-t 4 -J 3 -j 0 -o out.0
-t 4 -J 3 -j 1 -o out.1
-t 4 -J 3 -j 2 -o out.2</div>
<p style="margin-top:0em; margin-bottom:0em">
The output can then be collected with
</p>
<div class="verbatim">mcx collect --add-column -o out.all out.[0-2]</div>
</div>
</div>

<a name="seealso"></a>
<h2>SEE ALSO</h2>
<p style="margin-bottom:0" class="asd_par">
<a class="local sibling" href="mcxio.html">mcxio</a>,
and <a class="local sibling" href="mclfamily.html">mclfamily</a> for an overview of all the documentation
and the utilities in the mcl family.</p>
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