ESS210B
Prof. Jin-Yi Yu
Quartimax and Varimax Rotation
qOuartimax Rotation
q      It seeks to rotate the original EOF matrix into a new EOF matrix for which the variance of squared elements of the eigenvectors is a maximum.
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qVarimax Rotation (more popular than the Quartimax rotation)
q      It seeks to simplify the individual EOF factors.
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q     The criterion of simplicity of the complete factor matrix is defined as the maximization of the sum of the simplicities of the individual factors.