(RPROP only): The decrease factor for the weight delta. It must be <1, default value is 0.5 that should work well in most cases, according to the algorithm's author. The parameter can only be changed explicitly by modifying the structure member.

public double RpDwMinus { get; set; }

Public Property RpDwMinus As Double
	Get
	Set

public:
property double RpDwMinus {
	double get ();
	void set (double value);
}

member RpDwMinus : float with get, set