calcCrossCorr(modes,
n_cpu=1)
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Return cross-correlations matrix. For a 3-d model, cross-correlations
matrix is an NxN matrix, where N is the number of atoms. Each element of
this matrix is the trace of the submatrix corresponding to a pair of
atoms. Covariance matrix may be calculated using all modes or a subset of
modes of an NMA instance. For large systems, calculation of
cross-correlations matrix may be time consuming. Optionally, multiple
processors may be employed to perform calculations by passing ``n_cpu=2``
or more.
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