multi-way data

synonym: N-way data
https://doi.org/10.1351/goldbook.10056

Multivariate data having two or more kinds of explanatory variable per object.

Notes:
  1. For two groups of explanatory variables the data is termed ‘three-way’.
  2. Models that decompose multi-way data include PARAFAC, Tucker3 model.
Example: Fluorescence intensities with excitation wavelength and emission wavelength representing the two variable axes, and the objects making the third direction.
Source:
PAC, 2016, 88, 407. (Vocabulary of concepts and terms in chemometrics (IUPAC Recommendations 2016)) on page 411 [Terms] [Paper]
Citation: 'multi-way data' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.10056 RIS BibTex EndNote
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