MultivariateRegressionGetCrossPRESS Method

public static double GetCrossPRESS(
	double[] xOfXRaw,
	Matrix<double> matrixXRaw,
	Matrix<double> matrixYRaw,
	int maximalNumberOfFactors,
	ICrossValidationGroupingStrategy groupingStrategy,
	ISingleSpectrumPreprocessor spectralPreprocessing,
	MultivariateRegression regressionMethod,
	out IReadOnlyList<double> crossPRESS
)

Parameters

xOfXRaw  Double

The x-values (wavelength, frequency, etc.) of the unpreprocessed spectra.

matrixXRaw  MatrixDouble

Matrix of unpreprocessed spectra (a spectrum is a row in the matrix).

matrixYRaw  MatrixDouble

Matrix of unpreprocessed target variables (e.g. concentrations).

maximalNumberOfFactors  Int32

Maximum number of factors to calculate the cross PRESS for.

groupingStrategy  ICrossValidationGroupingStrategy

The strategy how to group the spectra for cross prediction.

spectralPreprocessing  ISingleSpectrumPreprocessor

Information how to preprocess the spectra, here: how to process each spectrum separately.

regressionMethod  MultivariateRegression

The type of regression (e.g. PCR, PLS1, PLS2) provided as an empty regression object.

crossPRESS  IReadOnlyListDouble

On return, the vector of cross PRESS values. Note that this vector has the length maximalNumberOfFactors + 1.

Return Value

Reference