lyap_k.html
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Lyap_k
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<h1 align=center>Description of the program: <font color=Blue>lyap_k
</font>
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The program estimates the largest Lyapunov exponent of a given scalar
data set using the algorithm of <a
href="../chaospaper/citation.html#Holger" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/chaospaper/citation.html#Holger">Kantz</a>.
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<h2 align=center>Usage:</h2>
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<font color=Red>lyap_k [Options]</font>
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Everything not being a valid option will be interpreted as a potential datafile name. Given no datafile at all, means read stdin. Also <font color=Red>-</font> means stdin
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Possible options are:
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<table border=2>
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<th>Option
<th>Description
<th>Default
</tr>
<tr>
<th>-l#
<td>number of data to be used
<td>whole file
</tr>
<tr>
<th>-x#
<td>number of lines to be ignored
<td>0
</tr>
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<th>-c#
<td><a href="../general.html#column" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/general.html#column">column to be read</a>
<td>1
</tr>
<tr>
<th>-M#
<td>maximal embedding dimension to use
<td>2
</tr>
<tr>
<th>-m#
<td>minimal embedding dimension to use
<td>2
</tr>
<tr>
<th>-d#
<td>delay to use
<td>1
</tr>
<tr>
<th>-r#
<td>minimal length scale to search neighbors
<td>(data interval)/1000
</tr>
<tr>
<th>-R#
<td>maximal length scale to search neighbors
<td>(data interval)/100
</tr>
<tr>
<th>-##
<td>number of length scales to use
<td>5
</tr>
<tr>
<th>-n#
<td>number of reference points to use
<td>all
</tr>
<tr>
<th>-s#
<td>number of iterations in time
<td>50
</tr>
<tr>
<th>-t#
<td>'theiler window'
<td>0
</tr>
<tr>
<th>-o#
<td><a href="../general.html#outfile" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/general.html#outfile">output file name</a>
<td>without file name: 'datafile'.lyap <br>
(or stdin.lyap if the data were read from stdin)
</tr>
<tr>
<th>-V#
<td><a href="../general.html#verbosity" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/general.html#verbosity">verbosity level</a><br>
0: only panic messages<br>
1: add input/output messages<br>
2: add statistics for each iteration
<td>3
</tr>
<tr>
<th>-h
<td>show these options
<td>none
</tr>
</table>
</center>
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<h2 align=center>Description of the Output:</h2>
For each embedding dimension and each length scale the file contains a
block of data consisting of 3 columns<br>
<ol>
<li>The number of the iteration</li>
<li>The logarithm of the stretching factor (the slope is the Lyapunov
exponent if it is a straight line)</li>
<li>The number of points for which a neighborhood with enough points was
found</li>
</ol>
<hr>
View the <a href="../../source_c/lyap_k.c" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/source_c/lyap_k.c"> C-sources</a>.
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See also <a href="lyap_r.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/lyap_r.html">lyap_r</a>.
<hr>
<a href="../contents.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/contents.html">Table of Contents</a> * <a
href="../../index.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/index.html" target="_top">TISEAN home</a>
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