BroydenFletcherGoldfarbShannoStatus Enumeration

Status codes for the BroydenFletcherGoldfarbShanno function optimizer.

Namespace: Accord.Math.Optimization
Assembly: Accord.Math (in Accord.Math.dll) Version: 3.8.0

Syntax

public enum BroydenFletcherGoldfarbShannoStatus

Public Enumeration BroydenFletcherGoldfarbShannoStatus

Members

Member name	Value	Description
Success	0	Convergence was attained.
Stop	1	The optimization stopped before convergence; maximum number of iterations could have been reached.
AlreadyMinimized	2	The function is already at a minimum.
UnknownError	-1024	Unknown error.
OutOfInterval	-1003	The line-search step went out of the interval of uncertainty.
IncorrectMinMax	-1002	A logic error occurred; alternatively, the interval of uncertainty became too small.
RoundingError	-1001	A rounding error occurred; alternatively, no line-search step satisfies the sufficient decrease and curvature conditions. The line search routine will terminate with this code if the relative width of the interval of uncertainty is less than FunctionTolerance.
MinimumStep	-1000	The line-search step became smaller than MinStep.
MaximumStep	-999	The line-search step became larger than MaxStep.
MaximumLineSearch	-998	The line-search routine reaches the maximum number of evaluations.
MaximumIterations	-997	Maximum number of iterations was reached.
IntervalWidthTooSmall	-996	Relative width of the interval of uncertainty is at most FunctionTolerance.
InvalidParameters	-995	A logic error (negative line-search step) occurred. This could be an indication that something could be wrong with the gradient function.
IncreaseGradient	-994	The current search direction increases the objective function value.