Generalised Canonical Correlation Analysis for the interpretation of fluorescence spectral dataM.-F. Devaux1, P. Courcoux2, E. Vigneau2 and B. Novales1
1 INRA - LTAN, BP. 71627, 44316 Nantes Cedex 03, France
2 ENITIAA/INRA, Statistique Appliquée à la Caractérisation des Aliments, rue de la Géraudiére, 44072 Nantes, France
The paper reports an application of Generalised Canonical Correlation Analysis to fluorescence spectral data. Emission fluorescence spectra can be recorded for several excitation wavelengths and can be presented as 3-way data tables. The objectives of the data treatment are to describe and compare the samples by taking into account all the emission spectra, and to reveal characteristic excitation and emission wavelengths. Generalised Canonical Correlation Analysis has been tested on fluorescence emission spectra acquired for binary mixtures of raw materials in the food domain. The application of the method within the context of spectral data is presented.
Key words: Key words. Generalised Canonical Correlation Analysis / fluorescence spectroscopy / multi-way data table.
© EDP Sciences, Wiley-VCH 1998