// Calibration contain methods for finding and validating factors transforming GPS coordinates to meters.
// ToDo: make static
public static bool ShouldAltBeUsed(TrainingSession ts)
{
Calibration calibrationWithAlt = new Calibration(true);
List <TickDiffPair> calibrationSet = calibrationWithAlt.FindCandidates(ts, 100);
List <TickDiffPair> validationSet = calibrationWithAlt.FindCandidates(ts, 100);
ConversionFactors estimationWithAlt = calibrationWithAlt.CalibrateIteratively(calibrationSet, validationSet);
double errorWithAlt = calibrationWithAlt.CalculateCalibrationError(estimationWithAlt, validationSet);
Calibration calibrationWithoutAlt = new Calibration(false);
ConversionFactors estimationWithoutAlt = calibrationWithoutAlt.CalibrateIteratively(calibrationSet, validationSet);
double errorWithoutAlt = calibrationWithAlt.CalculateCalibrationError(estimationWithoutAlt, validationSet);
return(errorWithAlt < errorWithoutAlt);
}