Initializing help system before first use

CalcSolInfo Method (Double[], Double[], Int32, Double)

Calculates the required property of a solution, like maximum infeasibility of a given primal and dual solution.

Namespace:   Optimizer
Assembly:  xprsdn (in xprsdn.dll) Version: 44.01.01
Syntax
C# 
public void CalcSolInfo(
	double[] solution,
	double[] duals,
	int property,
	out double p_value
)

Parameters

solution
Type:  System.Double
Double array of length COLS that holds the solution. May be null when asking for dual infeasibility.
duals
Type:  System.Double
Double array of length ROWS that holds the dual solution. May be null when asking for primal/MIP infeasibility.
property
Type:  System.Int32
Defined the property to be calculated.
  • XPRS_SOLINFO_ABSPRIMALINFEAS: the calculated maximum absolute primal infeasibility is returned.
  • XPRS_SOLINFO_RELPRIMALINFEAS: the calculated maximum relative primal infeasibility is returned.
  • XPRS_SOLINFO_ABSDUALINFEAS: the calculated maximum absolute dual infeasibility is returned.
  • XPRS_SOLINFO_RELDUALINFEAS: the calculated maximum relative dual infeasibility is returned.
  • XPRS_SOLINFO_MAXMIPFRACTIONAL: the calculated maximum absolute MIP fractionality or SOS infeasibility.
  • XPRS_SOLINFO_ABSMIPINFEAS: the calculated maximum absolute MIP infeasibility (including delayed rows, indicators, general and piecewise linear constraints) is returned.
  • XPRS_SOLINFO_RELMIPINFEAS: the calculated maximum relative MIP infeasibility (including delayed rows, indicators, general and piecewise linear constraints) is returned.
p_value
Type:  System.Double
Pointer to a double where the calculated value is returned.
Remarks
See Also
Parent Topic CalcSolInfo Method

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