MeasuresSkewness Method (Double, Double, Boolean)

Computes the Skewness vector for the given matrix.

Namespace: Accord.Statistics
Assembly: Accord.Math (in Accord.Math.dll) Version: 3.8.0

Syntax

public static double[] Skewness(
	this double[][] matrix,
	double[] means,
	bool unbiased = true
)

<ExtensionAttribute>
Public Shared Function Skewness ( 
	matrix As Double()(),
	means As Double(),
	Optional unbiased As Boolean = true
) As Double()

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Parameters

matrix: Type: SystemDouble
A number array containing the vector values.
means: Type: SystemDouble
The column means, if known.
unbiased (Optional): Type: SystemBoolean
True to compute the unbiased estimate of the population skewness, false otherwise. Default is true (compute the unbiased estimator).

Return Value

Type: Double
The skewness of the given data.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type . When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Remarks

Skewness characterizes the degree of asymmetry of a distribution around its mean. Positive skewness indicates a distribution with an asymmetric tail extending towards more positive values. Negative skewness indicates a distribution with an asymmetric tail extending towards more negative values.

Reference

Measures Class

Skewness Overload

Accord.Statistics Namespace