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tim |
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#include "LinearCons.hpp"
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LinearCons::LinearCons(vector<int>& theIndex, vector<double>& theCoeff, double b, BoundType bType)
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:ConstraintBase(){
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bound = b;
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boundType = bType;
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if(bType == btEqu){
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consType = linearEqu;
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}
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else{
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consType = linearInequ;
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}
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index = theIndex;
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coeff = theCoeff;
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}
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LinearCons::LinearCons(int dim, vector<int>& theIndex, vector<double>& theCoeff, double b, BoundType bType)
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:ConstraintBase(dim) {
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if (dim != theCoeff.size()){
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cout << "LinearCons Error: the dimension of index and coeff does not match" << endl;
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exit(ERROR_CONSTRAINT);
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}
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bound = b;
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boundType = bType;
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if(bType == btEqu){
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consType = linearEqu;
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}
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else{
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consType = linearInequ;
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}
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index = theIndex;
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coeff = theCoeff;
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}
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double LinearCons::calcResidual(vector<double>& x){
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double residue;
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double valueOfLinearCons;
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valueOfLinearCons = 0;
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for (int i = 0; i < coeff.size(); i++)
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valueOfLinearCons += coeff[i] * x[index[i]];
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residue = valueOfLinearCons - bound;
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if(boundType == btLower)
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residue = -residue;
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return residue;
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}
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vector<double> LinearCons::calcConsGrad(vector<double>& x){
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vector<double> consGrad(ndim, 0);
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double sign;
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if(boundType == btLower)
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sign = -1.0;
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else
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sign = 1.0;
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for(int i = 0; i < coeff.size(); i++)
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consGrad[index[i]] = coeff[i] * sign;
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return consGrad;
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}
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SymMatrix LinearCons::calcConsHessian(vector<double>& x){
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SymMatrix H(ndim);
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H = 0;
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return H;
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}
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