Method CVRMSE

src/model/UtilityBill.cpp:816–841

    }

    boost::optional<double> UtilityBill_Impl::CVRMSE() const {
      boost::optional<double> result;
      double ysum = 0;
      double squaredError = 0;
      unsigned n = 0;
      double conv = this->consumptionUnitConversionFactor();
      for (const BillingPeriod& p : this->billingPeriods()) {
        boost::optional<double> consumption = p.consumption();
        if (consumption) {
          double convertedConsumption = conv * consumption.get();
          boost::optional<double> modelConsumption = p.modelConsumption();
          if (modelConsumption) {
            ysum += convertedConsumption;
            squaredError += std::pow(convertedConsumption - *modelConsumption, 2);
            n += 1;
          }
        }
      }

      if (n > 1) {
        double ybar = ysum / n;
        result = 100.0 * std::pow(squaredError / (n - 1), 0.5) / ybar;
      }

      return result;
    }

    boost::optional<double> UtilityBill_Impl::NMBE() const {
      boost::optional<double> result;