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ReversePCATransform


Header: FIL.h
Namespace: fil
Module: FoundationPro

Reverses Principal Component Analysis (PCA) process. Can be used to transform data back to original feature space.

Syntax

C++
C#
 
void fil::ReversePCATransform
(
	const fil::Matrix& inTransformedMatrix,
	const fil::PCAModel& inPCAModel,
	fil::Matrix& outMatrix
)

Parameters

Name Type Default Description
Input value inTransformedMatrix const Matrix& Data that was transformed earlier.
Input value inPCAModel const PCAModel& PCA model used to create inTransformedMatrix.
Output value outMatrix Matrix& inTransformedMatrix transformed back to its original feature space.

Errors

List of possible exceptions:

Error type Description
DomainError Feature vector of inPCAModel and Transformed Data matrices dimensions do not correspond to each other in ReversePCATransform.
DomainError inMeanVector and inStandardDeviationVector have incorrect size for inTransformedMatrix provided in ReversePCATransform.
DomainError Malformed inPCAModel - StandardDeviationVector is not row-vector in ReversePCATransform.
DomainError Malformed inPCAModel - MeanVector is not row-vector in ReversePCATransform.
DomainError Malformed inPCAModel - uneven vector sizes in ReversePCATransform.