sym_get_lb_for_new_obj

[f]sym_get_lb_for_new_obj

int sym_get_lb_for_new_rhs(sym_environment *env, int cnt, int *new_obj_ind, 
                           double *new_obj_val, double *lb_for_new_obj)

Description:

This routine is used for a basic sensitivity analysis of the objective function case. It returns a quick lower bound for the problem with a modified objective vector using the information gathered from the branching tree of the original solved problem. Note that, in order to use this feature, the sensitivity_analysis parameter needs to be set before solving the original problem.

Arguments:

sym_environment *env	IN	Pointer to the SYMPHONY environment.
int cnt	IN	The number of the non zero elements in the new objective coefficients.
int *new_obj_ind	IN	Array of the column indices of these non zero elements.
double *new_obj_val	IN	Array of the values of these non zero elements.
double *lb_for_new_obj	OUT	Pointer to a double indicating the lower bound obtained for the new problem.

Return values:

FUNCTION_TERMINATED_NORMALLY	Function invoked successfully.
FUNCTION_TERMINATED_ABNORMALLY	Function invoked unsuccessfully.