(PECL fann >= 1.0.0)
fann_set_cascade_activation_steepnesses — ���ü�����ѡ����ȵ����顣
$ann
, array $cascade_activation_steepnesses_count
) : bool���ü�����ѡ����ȵ����顣
��֪���ĸ���ѡ��Ԫ���ᱻ���������ɣ��μ� fann_get_cascade_num_candidates() .
annNeural network resource.
cascade_activation_steepnesses_count������ѡ��������顣
Returns TRUE on success, or FALSE otherwise.