{"term":{"id":"10138","title":"partial least squares discriminant analysis","longtitle":"IUPAC Gold Book - partial least squares discriminant analysis","doi":"10.1351\/goldbook.10138","code":"10138","status":"current","initialism":"<em>initialism<\/em>: PLS-DA","definitions":[{"id":1,"text":"Linear classification in which the criterion function is obtained by partial least squares analysis.","notes":{"1":"PLS-DA can also be useful for exploratory data analysis.","2":"PLS-DA results depend on data pre-processing and choice of parameters and so is believed to be more difficult to implement well than other forms of discriminant analysis such as linear discriminant analysis, quadratic discriminant analysis or regularized discriminant analysis."},"links":[{"term":"data pre-processing","url":"https:\/\/goldbook.iupac.org\/terms\/view\/10048"},{"term":"exploratory data analysis","url":"https:\/\/goldbook.iupac.org\/terms\/view\/10052"},{"term":"linear discriminant analysis","url":"https:\/\/goldbook.iupac.org\/terms\/view\/10133"},{"term":"partial least squares","url":"https:\/\/goldbook.iupac.org\/terms\/view\/10155"},{"term":"quadratic discriminant analysis","url":"https:\/\/goldbook.iupac.org\/terms\/view\/10139"},{"term":"regularized discriminant analysis","url":"https:\/\/goldbook.iupac.org\/terms\/view\/10140"}],"sources":["PAC, 2016, 88, 407. 'Vocabulary of concepts and terms in chemometrics (IUPAC Recommendations 2016)' on page 430 (https:\/\/doi.org\/10.1515\/pac-2015-0605)"]}],"altoutputs":{"html":"https:\/\/goldbook.iupac.org\/terms\/view\/10138\/html","xml":"https:\/\/goldbook.iupac.org\/terms\/view\/10138\/xml","plain":"https:\/\/goldbook.iupac.org\/terms\/view\/10138\/plain"},"citation":"Citation: 'partial least squares discriminant 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.10138","license":"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.","collection":"If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org .","disclaimer":"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.","accessed":"2026-06-28T14:27:44+00:00"}}