Initializing help system before first use

RepairInfeas Method (Char, Char, Char, Double, Double, Double, Double, Double)

Convenience wrapper for RepairInfeas(int,char,char,char,double,double,double,double,double) that returns the output argument.

Namespace:   Optimizer
Assembly:  xprsdn (in xprsdn.dll) Version: 43.01.03
Syntax
C# 
public int RepairInfeas(
	char penalty,
	char phase2,
	char flags,
	double lepref,
	double gepref,
	double lbpref,
	double ubpref,
	double delta
)

Parameters

penalty
Type:  SystemChar
The type of penalties created from the preferences:
  • c: each penalty is the reciprocal of the preference (default);
  • s: the penalties are placed in the scaled problem.
phase2
Type:  SystemChar
Controls the second phase of optimization:
  • o: use the objective sense of the original problem (default);
  • x: maximize the relaxed problem using the original objective;
  • f: skip optimization regarding the original objective;
  • n: minimize the relaxed problem using the original objective;
  • i: if the relaxation is infeasible, generate an irreducible infeasible subset for the analys of the problem;
  • a: if the relaxation is infeasible, generate all irreducible infeasible subsets for the analys of the problem.
flags
Type:  SystemChar
Specifies what type of solve should be done:
  • g: solve as MIP (default);
  • l: solve as a linear model ignoring the discreteness of variables;
  • x: call the global solver.
lepref
Type:  SystemDouble
Preference for relaxing the less or equal side of row.
gepref
Type:  SystemDouble
Preference for relaxing the greater or equal side of a row.
lbpref
Type:  SystemDouble
Preferences for relaxing lower bounds.
ubpref
Type:  SystemDouble
Preferences for relaxing upper bounds.
delta
Type:  SystemDouble
The relaxation multiplier in the second phase -1. For console use -d value. A positive value means a relative relaxation by multiplying the first phase objective with ( delta-1), while a negative value means an absolute relaxation, by adding abs(delta) to the first phase objective.

Return Value

Type:  Int32
The value that the wrapped function would return in p_status.
See Also
Parent Topic RepairInfeas Method

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