10112 IUPAC Gold Book - score 10.1351/goldbook.10112 10112 current 1 Factor analysis projection of an object onto a factor. In principal-component analysis, the factors are orthogonal and the scores are an orthogonal projection of the objects onto a factor. The scores on a factor reflect the relationships between objects for that factor. The term scores (plural) refers to a whole column in the scores matrix that relates to a particular factor. The term score (singular) is the projection of a particular object onto the factor. Factor analysis https://goldbook.iupac.org//terms/view/10093 loading https://goldbook.iupac.org//terms/view/10096 principal-component analysis https://goldbook.iupac.org//terms/view/10106 PAC, 2016, 88, 407. 'Vocabulary of concepts and terms in chemometrics (IUPAC Recommendations 2016)' on page 424 (https://doi.org/10.1515/pac-2015-0605) https://goldbook.iupac.org/terms/view/10112/html https://goldbook.iupac.org/terms/view/10112/json https://goldbook.iupac.org/terms/view/10112/plain Citation: 'score' 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.10112 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. 2026-04-18T20:56:57+00:00