public static double?Performance(this IEnumerable <double> values)
 {
     return(StatisticFunctions.GetPerformance(values));
 }
 public static IDictionary <DateTime, double> ConvertToPerformanceValues(
     this IDictionary <DateTime, double> values)
 {
     return(StatisticFunctions.GetItemPerformanceValues(values));
 }
 public static double?StandardDeviationPerAnnum(this IDictionary <DateTime, double> values)
 {
     return(StatisticFunctions.GetStandardDeviationPerAnnum(values));
 }
 public static double StandardDeviation(this IEnumerable <double> values)
 {
     return(StatisticFunctions.GetStandardDeviation(values));
 }
 public static double PercentileDisc(this IEnumerable <double> enumerable, double value)
 {
     return(StatisticFunctions.GetPercentileDisc(enumerable, value));
 }
 public static double Median(this IEnumerable <double?> enumerable)
 {
     return(StatisticFunctions.GetMedian(enumerable));
 }