neurom.morphmath.principal_direction_extent¶
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neurom.morphmath.
principal_direction_extent
(points)[source]¶ Calculate the extent of a set of 3D points.
The extent is defined as the maximum distance between the projections on the principal directions of the covariance matrix of the points.
- Parameter:
- points : a 2D numpy array of points
Returns: the extents for each of the eigenvectors of the cov matrix eigs : eigenvalues of the covariance matrix eigv : respective eigenvectors of the covariance matrix Return type: extents