<?xml version="1.0" encoding="UTF-8"?>

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This file is part of the Scilab time frequency toolbox.
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Copyright (c) CNRS - France 1999.
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<refentry xml:id="istfr1" xml:lang="en"
          xmlns="http://docbook.org/ns/docbook"
          xmlns:xlink="http://www.w3.org/1999/xlink"
          xmlns:svg="http://www.w3.org/2000/svg"
          xmlns:scilab="http://www.scilab.org"
          xmlns:ns3="http://www.w3.org/1999/xhtml"
          xmlns:mml="http://www.w3.org/1998/Math/MathML"
          xmlns:db="http://docbook.org/ns/docbook">


  <refnamediv>
    <refname>istfr1</refname><refpurpose>returns true is method is a time frequency representation of type 1 (positive and negative frequencies).</refpurpose>
  </refnamediv>



<refsynopsisdiv>
   <title>Calling Sequence</title>
   <synopsis>
   flag=istfr1(method)
   </synopsis>
</refsynopsisdiv>
<refsection>
   <title>Parameters</title>
   <variablelist>
     <varlistentry><term>method :</term>
      <listitem><para>a character string. Case do not matter.</para></listitem></varlistentry>
   </variablelist>
   <variablelist>
     <varlistentry><term>flag :</term>
      <listitem><para>a boolean rue if method is the name of a time frequency representation of type 1.</para></listitem></varlistentry>
   </variablelist>
 </refsection>

<refsection>
   <title>See also</title>
   <simplelist type="inline">
   <member><link linkend="istfr2">istfr2</link></member>
   <member><link linkend="istfraff">istfraff</link></member>
   </simplelist>
</refsection>

<refsection>
   <title>Authors</title>
   <simplelist type="vert">
   <member>H. Nahrstaedt - Aug 2010</member>
   <member>	F. Auger, may 98</member>
   </simplelist>
</refsection>
</refentry>
