Multiway API Reference

Functions

ChemometricsTools.MultiCenter — Type.

MultiCenter(Z, mode = 1)

Acquires the mean of the specified mode in Z and returns a transform that will remove those means from any future data.

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ChemometricsTools.MultiCenter — Method.

(T::MultiCenter)(Z; inverse = false)

Centers data in Tensor Z mode-wise according to learned centers in MultiCenter object T.

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ChemometricsTools.MultiScale — Type.

MultiScale(Z, mode = 1)

Acquires the standard deviations of the specified mode in Z and returns a transform that will scale by those standard deviations from any future data.

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ChemometricsTools.MultiScale — Method.

(T::MultiScale)(Z; inverse = false)

Scales data in Tensor Z mode-wise according to learned standard deviations in MultiScale object T.

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ChemometricsTools.MultiNorm — Method.

MultiNorm(T)

Computes the equivalent of the Froebinius norm on a tensor T. Returns a scalar.

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ChemometricsTools.MultiPCA — Method.

MultiPCA(X; Factors = 2)

Performs multiway PCA aka Higher Order SVD aka Tucker, etc. The number of factors decomposed can be a scalar(repeated across all modes) or a vector/tuple for each mode.

Returns a tuple of (Core Tensor, Basis Tensors)

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