public static double Mean <K, V>(this Series <K, V> series)
{
Series <K, V> series1 = series;
int num1 = 1;
OptionalValue <V>[] optionalValueArray = StatsInternal.valuesAllOpt <K, V>(series1);
int num2 = num1;
V[] vArray1 = ArrayModule.Choose <OptionalValue <V>, V>((FSharpFunc <M0, FSharpOption <M1> >) new SeriesStatsExtensions.Mean <V>(), (M0[])optionalValueArray);
FSharpFunc <V, double> fsharpFunc = (FSharpFunc <V, double>) new SeriesStatsExtensions.Mean <V>();
V[] vArray2 = vArray1;
if ((object)vArray2 == null)
{
throw new ArgumentNullException("array");
}
double[] init = new double[vArray2.Length];
int moment = num2;
for (int index = 0; index < init.Length; ++index)
{
init[index] = fsharpFunc.Invoke(vArray2[index]);
}
StatsInternal.Sums sums = StatsInternal.initSumsDense(moment, init);
return(sums.sum / sums.nobs);
}
public static double Median <K, V>(this Series <K, V> series)
{
V[] vArray1 = (V[])ArrayModule.OfSeq <V>((IEnumerable <M0>)series.Values);
FSharpFunc <V, double> fsharpFunc = (FSharpFunc <V, double>) new SeriesStatsExtensions.Median <V>();
V[] vArray2 = vArray1;
if ((object)vArray2 == null)
{
throw new ArgumentNullException("array");
}
double[] numArray = new double[vArray2.Length];
for (int index = 0; index < numArray.Length; ++index)
{
numArray[index] = fsharpFunc.Invoke(vArray2[index]);
}
double[] arr = numArray;
int n = arr.Length / 2;
if (arr.Length == 0)
{
return(Operators.get_NaN());
}
if (arr.Length % 2 == 1)
{
return(StatsInternal.quickSelectInplace(n, arr));
}
return((StatsInternal.quickSelectInplace(n, arr) + StatsInternal.quickSelectInplace(n - 1, arr)) / 2.0);
}