Quartimax and Varimax Rotation
q Ouartimax Rotation
      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.
q Varimax Rotation (more popular than the Quartimax rotation)
      It seeks to simplify the individual EOF factors.
     The criterion of simplicity of the complete factor matrix is defined as
the maximization of the sum of the simplicities of the individual
factors.