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

Sub Main;

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("Skew: " + d0.ToString);

End Sub Main;

Executing this example shows skew in the console window:

Module execution started

Skew: 0.66055255321613804

Module execution finished