10123 IUPAC Gold Book - disjoint principal component analysis 10.1351/goldbook.10123 10123 current 1 Principal-component analysis (PCA) independently performed on each class as a step in classification. Soft independent modelling of class analogy is an example of the use of disjoint principal component analysis. When a PCA model is obtained using all classes, it is known as conjoint PCA. Principal-component analysis https://goldbook.iupac.org//terms/view/10106 Soft independent modelling of class analogy https://goldbook.iupac.org//terms/view/10143 PAC, 2016, 88, 407. 'Vocabulary of concepts and terms in chemometrics (IUPAC Recommendations 2016)' on page 428 (https://doi.org/10.1515/pac-2015-0605) https://goldbook.iupac.org/terms/view/10123/html https://goldbook.iupac.org/terms/view/10123/json https://goldbook.iupac.org/terms/view/10123/plain Citation: 'disjoint principal component analysis' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.10123 The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. 2026-07-24T22:50:35+00:00