array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'zh', ), 'this' => array ( 0 => 'function.fann-get-rprop-decrease-factor.php', 1 => 'fann_get_rprop_decrease_factor', ), 'up' => array ( 0 => 'ref.fann.php', 1 => 'Fann 函数', ), 'prev' => array ( 0 => 'function.fann-get-quickprop-mu.php', 1 => 'fann_get_quickprop_mu', ), 'next' => array ( 0 => 'function.fann-get-rprop-delta-max.php', 1 => 'fann_get_rprop_delta_max', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'zh', 'path' => 'reference/fann/functions/fann-get-rprop-decrease-factor.xml', ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); ?>
(PECL fann >= 1.0.0)
fann_get_rprop_decrease_factor — 返回 RPROP 训练期间的衰减系数
衰减系数的值小于1,用于在 RPROP 训练期间减少的步长。
The default decrease factor is 0.5.
ann
神经网络 资源。
成功,返回衰减系数,错误则返回 false
.