Description
The routine CPXgetax() is used to access row activity levels for a range of constraints of a linear or quadratic program. The beginning and end of the range must be specified. A row activity is the inner product of a row in the constraint matrix and the structural variables in the problem.Return Value
The routine returns a zero on success, and a nonzero if an error occurs.Synopsis
int CPXgetax (CPXENVptr env,
CPXLPptr lp,
double *x,
int begin,
int end);
CPXENVptr envThe pointer to the CPLEX environment as returned by one of the
CPXopenCPLEX routines.
CPXLPptr lpA pointer to a CPLEX LP problem object as returned by
CPXcreateprob().
double *xAn array to receive the values of the row activity levels for each of the constraints in the specified range. The array must be of length at least (
end-begin+1). If successful,x[0] through x[end-begin] will contain the row activities.
int beginAn integer indicating the beginning of the range of row activities to be returned.
int endAn integer indicating the end of the range of row activities to be returned.