text: #include "promethee_function.h"
  ldouble PrometheeFunction::getPositiveDelta(vector<ldouble> & values, ldouble queryValue, vector<ldouble> & cummulative, ldouble weight){
      return 0;
  }
  ldouble PrometheeFunction::getNegativeDelta(vector<ldouble> & values, ldouble queryValue, vector<ldouble> & cummulative, ldouble weight){
      return 0;
  }