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Methods of varimax rotation in factor analysis with applications in clinical and food chemistry
Author(s) -
Forina M.,
Armanino C.,
Lanteri S.,
Leardi R.
Publication year - 2005
Publication title -
journal of chemometrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.47
H-Index - 92
eISSN - 1099-128X
pISSN - 0886-9383
DOI - 10.1002/cem.1180030504
Subject(s) - varimax rotation , rotation (mathematics) , mathematics , statistics , interpretation (philosophy) , computer science , geometry , cronbach's alpha , descriptive statistics , programming language
Orthogonal rotations, e.g. the varimax rotation, are common practice in factor anlaysis. However, the term varimax rotation does not refer to a unique procedure, since several different types of rotation are possible. In this paper six different types of rotation are examined (raw varimax of loadings, normal varimax of loadings, raw and normal varimax of scores, eigenvalue‐weighted varimax of loadings and Arthur varimax) from both a theoretical and practical point of view. It can be concluded that an adequate application of these methods can often simplify the interpretation of the calculated factors.