Package schrodinger :: Package trajectory :: Package prody :: Module crosscorrelation
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Module crosscorrelation

This module defines functions for calculating atomic properties from normal modes.

Functions [hide private]
 
calcCrossCorr(modes, n_cpu=1)
Return cross-correlations matrix.
 
_crossCorrelations(queue, n_atoms, array, variances, indices)
Calculate covariance-matrix for a subset of modes.
 
calcCovariance(modes)
Return covariance matrix calculated for given *modes*.
Variables [hide private]
  __package__ = 'schrodinger.trajectory.prody'
Function Details [hide private]

calcCrossCorr(modes, n_cpu=1)

 

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.