IStatistics.Dispersion

Syntax

Dispersion(Values: Array): Double;

Parameters

Values. Array of numeric arguments corresponding to sample of general population.

Description

The Dispersion method estimates variance of the sample.

Comments

The estimation assumes that the arguments are a sample of a population.

Example

To execute the example, add a link to the Stat system assembly.

Sub UserProc;
Var
    st: Statistics;
    d0: Double;
    y: Array Of Double;
Begin
    y := New Double[10];
    y[00] := 1.6;
    y[01] := 1.7;
    y[02] := 1.8;
    y[03] := 1.9;
    y[04] := 2;
    y[05] := 2.1;
    y[06] := 2.2;
    y[07] := 2.3;
    y[08] := 2.4;
    y[09] := 2.8;
    st := New Statistics.Create;
    d0 := st.Dispersion(y);
    Debug.WriteLine("Variance: " + d0.ToString);
End Sub UserProc;

Executing the example shows variation in the console window:

Unit execution started

Variance: 0.130666666666666

Unit execution finished