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problem.getLpSol

Purpose
Used to obtain the LP solution values following optimization.
Topic areas
Solution, LP
Synopsis
x, slack, duals, djs = problem.getLpSol()
Return value
x 
Double array of length ORIGINALCOLS containing the values of the primal variables.
slack 
Double array of length ORIGINALROWS containing the values of the slack variables.
duals 
Double array of length ORIGINALROWS containing the values of the dual variables ( cBTB-1).
djs 
Double array of length ORIGINALCOLS containing the reduced cost for each variable ( cT-cBTB-1A).
Further information
1. After solving an LP, it is recommended to use problem.getSolution to retrieve the solution.
2. When an integer solution is found during a tree search, it is always set up as a solution to the current node; therefore the integer solution is available as the current node. It is recommended to retrieved the solution with problem.getCallbackSolution and problem.getCallbackPresolveSolution.
3. The function always returns data in the original space, even if the problem is currently in presolved state. Use problem.getPresolveSol if you need the solution in terms of the presolved model.
4. If the matrix is modified after calling problem.lpOptimize, then the solution will no longer be available.
5. If the problem has been presolved, then problem.getLpSol returns the solution to the original problem. The only way to obtain the presolved solution is to call the related function, problem.getPresolveSol.
Related topics
problem.getSolution, problem.getCallbackSolution, problem.getPresolveSol, problem.writePrtSol, problem.writeSol, problem.postSolveSol.

Parent Topic Methods of the class problem

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