(PECL fann >= 1.0.0)
fann_set_rprop_delta_zero — Sets the initial step-size
$ann
, float $rprop_delta_zero
) : boolThe initial step-size is a positive number determining the initial step size.
ann
Neural network resource.
rprop_delta_zero
The initial step-size.
Returns TRUE
on success, or FALSE
otherwise.