IStatistics.Skew

Syntax

Skew(Values: Array): Double;

Parameters

Values. Array of arguments skewness of which is calculated.

Description

The Skew method returns the skewness of distribution.

Comments

Skew is a measure of distribution unsymmetry relative to the distribution mean. Positive skew indicates distribution deviation towards positive values. Negative skew indicates distribution deviation towards negative values.

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.Skew(y);
    Debug.WriteLine("Skewness: " + d0.ToString);
End Sub UserProc;

Executing the example shows skew in the console window:

Unit execution started

Skewness: 0.660552553216138

Unit execution finished