You are here: Start » AVL.NET » AVL.NormalizeMatrixData Method

AVL.NormalizeMatrixData Method

Treats Matrix as a data frame, where examples are in rows while columns represent features, and normalizes the data by subtracting mean from each column and dividing it by its standard deviation.

Syntax

public static void NormalizeMatrixData(
	AvlNet.Matrix inMatrix,
	AvlNet.Matrix inMeansVector,
	AvlNet.Matrix inStandardDeviationsVector,
	out AvlNet.Matrix outNormalizedMatrix,
	out AvlNet.Matrix outMeansVector,
	out AvlNet.Matrix outStandardDeviationsVector
)

Parameters

	Name	Type	Range	Default	Description
	inMatrix	AvlNet.Matrix			Input data frame.
	inMeansVector	AvlNet.Matrix			If provided, will be used in normalization of inMatrix. Default value: atl::NIL, or null.
	inStandardDeviationsVector	AvlNet.Matrix			If provided, will be used in normalization of inMatrix. Default value: atl::NIL, or null.
	outNormalizedMatrix	AvlNet.Matrix			Resulting normalized matrix.
	outMeansVector	AvlNet.Matrix			Resulting Means vector - copy of inMeansVector, or calculated Means, if inMeansVector was set NIL.
	outStandardDeviationsVector	AvlNet.Matrix			Resulting StdDevs vector - copy of inStandardDeviationsVector, or calculated Means, if inStandardDeviationsVector was set NIL.

Errors

See also

• NormalizeMatrixData(AvlNet.Matrix, AvlNet.Matrix, AvlNet.Matrix, AvlNet.Matrix)
• Class Reference
• AVL Class