fann-subset-train-data.xml

<?xml version="1.0" encoding="utf-8"?>
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<refentry xml:id="function.fann-subset-train-data" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>fann_subset_train_data</refname>
  <refpurpose>返回一个训练数据子集的副本。</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis>
   <type>resource</type><methodname>fann_subset_train_data</methodname>
   <methodparam><type>resource</type><parameter>data</parameter></methodparam>
   <methodparam><type>int</type><parameter>pos</parameter></methodparam>
   <methodparam><type>int</type><parameter>length</parameter></methodparam>
  </methodsynopsis>
  <para>
   返回一个训练数据子集的副本 <type>resource</type>, 从
   <literal>pos</literal> 位置开始向前步进 <literal>length</literal> 个元素。
  </para>
  <para>
   <literal>fann_subset_train_data(train_data, 0, fann_length_train_data(train_data))</literal> 和 <function>fann_duplicate_train_data</function>函数的效果是一样的。
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <variablelist>
   <varlistentry>
    <term><parameter>data</parameter></term>
    <listitem>
     &fann.train.description;
    </listitem>
   </varlistentry>
   <varlistentry>
    <term><parameter>pos</parameter></term>
    <listitem>
     <para>
      起始位置。
     </para>
    </listitem>
   </varlistentry>
   <varlistentry>
    <term><parameter>length</parameter></term>
    <listitem>
     <para>
     复制元素的数量。
     </para>
    </listitem>
   </varlistentry>
  </variablelist>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  &fann.return.train;
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <para>
   <simplelist>
    <member><function>fann_duplicate_train_data</function></member>
   </simplelist>
  </para>
 </refsect1>


</refentry>

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