| LevenbergMarquardtMinimizerTau Property |
Gets and sets the value of tau.
Namespace: CenterSpace.NMath.CoreAssembly: NMath (in NMath.dll) Version: 7.4
Syntax public double Tau { get; set; }
Public Property Tau As Double
Get
Set
public:
property double Tau {
double get ();
void set (double value);
}
member Tau : float with get, set
Property Value
DoubleRemarks
The Levenberg Marquardt algorithm is an iterative algorithm that
takes a step in the direction of decreasing function values on
each iteration. The initial step size is determined by the parameter
tau. Tau related to the size of the elements in the Jacobian
matrix of the minimized function evaluated at the starting point,
x0, of the iteration.
The algorithm is not very sensitive to the choice of tau, but as a
rule of thumb, one should use a small value, e.g. tau = 10^-6, is x0 is
believed to be a good approximation to the final solution x. Otherwise,
use tau = 10^-3 or even tau = 1. The default value is tau = 10^-3.
See Also