(PECL fann >= 1.0.0)
fann_get_rprop_decrease_factor — Returns the increase factor used during RPROP training
The decrease factor is a value smaller than 1, which is used to decrease the step-size during RPROP training.
The default decrease factor is 0.5.
annニューラルネットワークリソース。
The decrease factor, or false on error.