(PECL fann >= 1.0.0)
fann_get_cascade_num_candidate_groups — Returns the number of candidate groups
The number of candidate groups is the number of groups of identical candidates which will be used during training.
This number can be used to have more candidates without having to define new parameters for the candidates.
See fann_get_cascade_num_candidates() for a description of which candidate neurons will be generated by this parameter.
The default number of candidate groups is 2.
annNeural network resource.
The number of candidate groups, or false on error.