/home/coin/SVN-release/Cbc-1.1.1/Clp/src/ClpSimplexOther.hpp

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00001 // Copyright (C) 2004, International Business Machines
00002 // Corporation and others.  All Rights Reserved.
00003 
00004 /* 
00005    Authors
00006    
00007    John Forrest
00008 
00009  */
00010 #ifndef ClpSimplexOther_H
00011 #define ClpSimplexOther_H
00012 
00013 #include "ClpSimplex.hpp"
00014 
00022 class ClpSimplexOther : public ClpSimplex {
00023 
00024 public:
00025 
00045   void dualRanging(int numberCheck,const int * which,
00046                   double * costIncrease, int * sequenceIncrease,
00047                   double * costDecrease, int * sequenceDecrease);
00061   void primalRanging(int numberCheck,const int * which,
00062                   double * valueIncrease, int * sequenceIncrease,
00063                   double * valueDecrease, int * sequenceDecrease);
00077   int parametrics(double startingTheta, double & endingTheta,double reportIncrement,
00078                   const double * changeLowerBound, const double * changeUpperBound,
00079                   const double * changeLowerRhs, const double * changeUpperRhs,
00080                   const double * changeObjective);
00089   int parametricsLoop(double startingTheta, double & endingTheta,double reportIncrement,
00090                       const double * changeLower, const double * changeUpper,
00091                       const double * changeObjective, ClpDataSave & data,
00092                       bool canTryQuick);
00100   void statusOfProblemInParametrics(int type,ClpDataSave & saveData);
00111   int whileIterating(double startingTheta, double & endingTheta,double reportIncrement,
00112                       const double * changeLower, const double * changeUpper,
00113                       const double * changeObjective);
00118   int nextTheta(int type, double maxTheta, double * primalChange, double * dualChange,
00119                       const double * changeLower, const double * changeUpper,
00120                       const double * changeObjective);
00126   void checkDualRatios(CoinIndexedVector * rowArray,
00127                    CoinIndexedVector * columnArray,
00128                        double & costIncrease, int & sequenceIncrease, double & alphaIncrease,
00129                        double & costDecrease, int & sequenceDecrease, double & alphaDecrease);
00134   void checkPrimalRatios(CoinIndexedVector * rowArray,
00135                          int direction);
00150     int writeBasis(const char *filename,
00151                  bool writeValues=false,
00152                  int formatType=0) const;
00154     int readBasis(const char *filename);
00156   ClpSimplex * dualOfModel() const;
00158   void restoreFromDual(const ClpSimplex * dualProblem);
00162   ClpSimplex * crunch(double * rhs, int * whichRows, int * whichColumns,
00163                       int & nBound, bool moreBounds=false, bool tightenBounds=false);
00167   void afterCrunch(const ClpSimplex & small,
00168                    const int * whichRows, const int * whichColumns,
00169                    int nBound);
00172   int tightenIntegerBounds(double * rhsSpace); 
00174 };
00175 #endif

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