private static double RelativeError <T>(QuantifiedValueOptions <T> options, List <double> stats)
{
var(mean, deviation) = stats.MeanStandardDeviation();
var sem = deviation / Math.Sqrt(stats.Count);
var marginOfErrorInPercents = sem * ConfidenceToFactor[options.ConfidenceLevel] / mean;
return(marginOfErrorInPercents);
}
private static double AbsoluteError <T>(QuantifiedValueOptions <T> options, List <double> stats)
{
var deviation = stats.StandardDeviation();
var sem = deviation / Math.Sqrt(stats.Count);
var marginOfError = sem * ConfidenceToFactor[options.ConfidenceLevel];
return(marginOfError);
}
private static bool IsGoodEnough <T>(QuantifiedValueOptions <T> valueOptions, List <T> batchRunResults)
{
var stats = batchRunResults.Select(runResult => valueOptions.GetQuantifiedValue(runResult)).ToList();
var isNiceRelativeError
= !valueOptions.DesiredRelativeError.HasValue ||
RelativeError(valueOptions, stats) <= valueOptions.DesiredRelativeError;
var isNiceAbsoluteError
= !valueOptions.DesiredAbsoluteError.HasValue ||
AbsoluteError(valueOptions, stats) <= valueOptions.DesiredAbsoluteError;
return(isNiceRelativeError && isNiceAbsoluteError);
}