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<html><head><title>mem_spec</title></head><body bgcolor=white><h1 align=center>Description of the program: <font color=Blue>mem_spec</font></h1><hr>This program estimates the power spectrum of a scalar data set on thebasis of the maximum entropy principle. A description of themethod is printed in the <a href="../chaospaper/citation.html#numrec">NumericalRecipes</a>, whereas the present implementation is new.<hr><h2 align=center>Usage:</h2><center><font color=Red>mem_spec [Options]</font><p>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<p>Possible options are:<p><table border=2><tr><th>Option<th>Description<th>Default</tr><tr><th>-l#<td>number of data to use<td>whole file</tr><tr><th>-x#<td>number of lines to be ignored<td>0</tr><tr><th>-c#<td><a href=../general.html#column>column to be read</a><td>1</tr><tr><th>-p#<td>number of poles<td>128</tr><tr><th>-f#<td>number of frequences to print<td>number of poles</tr><tr><th>-o#<td><a href=../general.html#outfile>output file name</a><td>without file name: 'datafile'.spec<br>(or stdin.spec if data were read from stdin)<br>Without -o data is written to 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<br> 2: add the AR coefficients to the output<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 first line shows the average forecast error of the AR-modelfitted.The following <font color=blue>p</font> lines contain the coefficientsof the fitted AR-model and the last <font color=blue>f</font> lines contain the power spectrum.<hr>View the <a href="../../source_c/mem_spec.c">C-source</a>.<hr>See also <a href="../docs_f/spectrum.html">spectrum</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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