public virtual AirQualityForecastError CalculateTotal(
short installationId,
IEnumerable <AirQualityForecastError> allForecastErrors)
{
var errorSum = new ErrorSum(installationId)
{
InstallationAddress = allForecastErrors.Last().InstallationAddress,
FromDateTime = allForecastErrors.Min(x => x.FromDateTime),
TillDateTime = allForecastErrors.Max(x => x.TillDateTime),
CaqiPct = allForecastErrors.Sum(fe => fe.AirlyCaqiPct),
Pm25Pct = allForecastErrors.Sum(fe => fe.Pm25Pct),
Pm10Pct = allForecastErrors.Sum(fe => fe.Pm10Pct),
Caqi = allForecastErrors.Sum(fe => fe.AirlyCaqi),
Pm25 = allForecastErrors.Sum(fe => fe.Pm25),
Pm10 = allForecastErrors.Sum(fe => fe.Pm10),
RequestDateTime = allForecastErrors.Max(x => x.RequestDateTime),
Counter = allForecastErrors.Count(),
};
if (installationId == _idForAllInstallations)
{
errorSum.InstallationAddress = "";
}
return(errorSum.CalculateMeanForecastError(
ForecastErrorPeriod.Total, _forecastErrorClass));
}
public virtual List <AirQualityForecastError> CalculateDaily(
short installationId,
short minNumberOfMeasurements,
List <AirQualityForecastError> newHourlyForecastErrors)
{
var dailyForecastErrorsSum = new ErrorSum(installationId);
var dailyForecastErrors = new List <AirQualityForecastError>();
for (int i = 0; i < newHourlyForecastErrors.Count; i++)
{
var currentMeasurementRequestTime =
newHourlyForecastErrors[i].RequestDateTime;
var previousMeasurementRequestTime = i != 0 ?
newHourlyForecastErrors[i - 1].RequestDateTime : DateTime.MinValue;
// Calculate MAPE of daily forecast
if (currentMeasurementRequestTime != previousMeasurementRequestTime)
{
if (i > 0 && dailyForecastErrorsSum.Counter >= minNumberOfMeasurements)
{
var dailyError = dailyForecastErrorsSum.CalculateMeanForecastError(
ForecastErrorPeriod.Day, _forecastErrorClass);
dailyForecastErrors.Add(dailyError);
}
dailyForecastErrorsSum.Reset(
newHourlyForecastErrors[i].InstallationAddress,
newHourlyForecastErrors[i].FromDateTime,
newHourlyForecastErrors[i].RequestDateTime);
}
dailyForecastErrorsSum.AddAbs(newHourlyForecastErrors[i]);
}
if (dailyForecastErrorsSum.Counter >= minNumberOfMeasurements)
{
var lastDailyError = dailyForecastErrorsSum.CalculateMeanForecastError(
ForecastErrorPeriod.Day, _forecastErrorClass);
dailyForecastErrors.Add(lastDailyError);
}
return(dailyForecastErrors);
}
