CPXgetpi

int CPXPUBLIC CPXgetpi(CPXCENVptr env, CPXCLPptr lp, double * pi, int begin, int end)

Definition file: cplex.h

Include files: cplex.h

The routine CPXgetpi is used to access the dual values for a range of the constraints of a linear or quadratic program. The beginning and end of the range must be specified.

Example

 status = CPXgetpi (env, lp, pi, 0, CPXgetnumrows(env,lp)-1);

Parameters:

env	A pointer to the CPLEX environment as returned by `CPXopenCPLEX`.
lp	A pointer to a CPLEX problem object as returned by `CPXcreateprob`.
pi	An array to receive the values of the dual variables for each of the constraints. This array must be of length at least (`end` - `begin+ 1`). If successful, `pi[0]` through `pi[end-begin]` contain the dual values.
begin	An integer indicating the beginning of the range of dual values to be returned.
end	An integer indicating the end of the range of dual values to be returned. Example status = CPXgetpi (env, lp, pi, 0, CPXgetnumrows(env,lp)-1);

Returns:

The routine returns zero on success and nonzero if an error occurs.