Method countElement

include/DataSet.h:128–138

check if an element exists */

      /** check if an element exists */
      int countElement(const KeyType &ID, const double Timestamp) const
      {
        if (!this->checkID(ID))
        {
          return 0;
        }
        else
        {
          return _DataStreams.at(ID).count(Timestamp);
        }
      }

      int countElements(const KeyType &ID) const
      {