ISolverMathProgramInstance::GetSensitivityData Method

Provides sensitivity range information.

virtual _LONG_T GetSensitivityData(
    _LONG_T first, 
    _LONG_T last, 
    _LONG_T type, 
    double lower[], 
    double upper[]
) = 0;

Parameters

Parameters	Description
_LONG_T first	The number of the column or row indicating the beginning of the range
_LONG_T last	The number of the column or row indicating the end of the range
_LONG_T type	Type of sensitivity that should be returned, value taken from the SensitivityType enumeration
double lower[]	Array for filling in the lower bounds of the sensitivity ranges
double upper[]	Array for filling in the upper bounds of the sensitivity ranges

Returns

The GetSensitivityData method should return AOSI_FAILURE in case of an error, or if the solver cannot handle the type of sensitivity that is called for. Otherwise it should return AOSI_SUCCESS.

Description

The GetSensitivityData method is called by AIMMS to access a range of lower and upper sensitivity ranges for objective function coefficients, or to access a range of lower and upper ranges for right-hand side values.

Remarks

The GetSensitivityData method will only be called by AIMMS if the capability flag SolverCapability::CAPAB_RHS_SENSE or SolverCapability::CAPAB_OBJ_SENSE is set in the GetInitialInfo method.
The arrays lower and upper have length last - first + 1.
RHS ranges are calculated for constraints for which the property RightHandSideRange is specified in the AIMMS model. Ranges for objective function coefficients are calculated for variables for which the property CoefficientRange is specified.

Group

ISolverMathProgramInstance Methods

Links

ISolverMathProgramInstance Class, ISolverMathProgramInstance Members, ISolverMathProgramInstance Methods

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