Merging RunningStatistics

RunningStatistics.cs

var a = new RunningStatistics(Normal.Samples(4.0,2.0).Take(200));
// Count: 200
// Mean: 4.19280609640353
// Variance: 3.88181490721677
// Min, Max, StandardDeviation, Skewness, Kurtosis; Population-*

var b = new RunningStatistics();
b.Push(8.0);
b.PushRange(Normal.Samples(8.0,1.0).Take(199));
// Count: 200
// Mean: 7.98480924115135
// Variance: 0.912238640131415

var c = a + b; // or RunningStatistics.Combine(a,b)
// Count: 400
// Mean: 6.08880766877744
// Variance: 5.99485072907276

RunningStatistics.fs

let a = RunningStatistics (Normal.Samples(8.0, 1.0) |> Seq.take 200)

let b = RunningStatistics()
b.Push 8.0
b.PushRange (Random.shared |> Sample.normalSeq 4.0 2.0 |> Seq.take 199)

let c = a + b; // or RunningStatistics.Combine(a,b)