Title: principal-component factor
Long Title: IUPAC Gold Book - principal-component factor
DOI: 10.1351/goldbook.10107
Status: current

Definition
Orthogonal factors obtained in a principal-component analysis.

Notes
1) The successive factors explain reducing fractions of the variance of the data set, and are written PC1, PC2 …
2) ISO 18115 recommends the use of the term "PCA factor".

Related Term
- principal-component analysis: https://goldbook.iupac.org//terms/view/10106

Source
- PAC, 2016, 88, 407. 'Vocabulary of concepts and terms in chemometrics (IUPAC Recommendations 2016)' on page 423 (https://doi.org/10.1515/pac-2015-0605)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/10107/html
- json: https://goldbook.iupac.org/terms/view/10107/json
- xml: https://goldbook.iupac.org/terms/view/10107/xml

Citation: Citation: 'principal-component factor' 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.10107
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Accessed: 2026-04-18T22:21:14+00:00