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<html><head><title>av-d2</title></head><body bgcolor=white><h1 align=center>Description of the program: <font color=Blue>av-d2</font></h1><hr>This program takes one of the output files of the <a href="d2.html"> d2</a>, <a href="../docs_f/c1.html">c1</a>, or<a href="../docs_f/c2naive.html">c2naive</a> programs as its input andsmoothes the content of the file by arithmetically averaging over a giveninterval. Furthermore, it is possible to specify a range of embedding dimensions to be printed. In the case of <a href="d2.html"> d2</a> output,the application of <font color=blue>av-d2</font> makes most sense on the localslopes file (extension <b>.d2</b>).<p>Suppose the input file contained values r<sub>i</sub> and d<sub>i</sub>, then the output will be in two columns<pre> __ a 1 \ r , ---- | d i 2a+1 /__ j=-a i-j</pre>where a is the argument to the <font color=blue> -a</font> option. We recommendto experiment with the parameter <font color=blue>a</font> for optimal results.<hr><h2 align=center>Usage:</h2><center><font color=Red>av-d2 input-file [Options]</font><br>input-file has to be one of the files created by <ahref="d2.html">d2</a>, <a href="../docs_f/c1.html">c1</a>or <a href="../docs_f/c2naive.html">c2naive</a>.<p>Possible options are:<p><table border=2><tr><th>Option<th>Description<th>Default</tr><tr><th>-m#<td>minimal dimension to print<td>1</tr><tr><th>-M#<td>maximal dimension to print<td>whole file</tr><tr><th>-a#<td>smooth over an interval of 2#+1 points<td>1</tr><tr><th>-E<td>show the length scales in rescaled units [0:1]<td>units of the data</tr><tr><th>-o#<td><a href=../general.html#outfile>output file name</a>; without -o default is used <br>-o without a datafile means 'filename'.av<td>stdout</tr><tr><th>-V#<td><a href=../general.html#verbosity>verbosity level</a><br> 0: only panic messages<br> 1: add input/output messages<td>1</tr><tr><th>-h<td>show these options<td>none</tr></table></center><hr><h2 align=center>Description of the Output:</h2> The output is thesame as the one from the <a href="d2.html">d2</a> and<a href="../docs_f/c2naive.html">c2naive</a> programs. The onlydifference is that the output is smoothed.<hr>Other post-processing for correlation sum data is available: <a href="../docs_f/c2d.html">c2d</a> computes local slopesfrom correlation sum data (extension <b>.c2</b>) by fitting straight lines. This is essentially redundant with the present program.<b>Takens' estimator</b> can be obtained using <a href="../docs_f/c2t.html">c2t</a> while <a href="../docs_f/c2g.html">c2g</a> provides <b>Gaussian kernel</b> correlationintegrals. Both act on the correlation sum data (extension <b>.c2</b>).<hr>View the <a href="../../source_c/av-d2.c"> C-sources</a>.<hr><a href="../contents.html">Table of Contents</a> * <a href="../../index.html" target="_top">TISEAN home</a></body></html>⌨️ 快捷键说明
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