Data Category em_map_eigenvalues
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General 
- Category name
- em_map_eigenvalues
- Required in PDB entries
- yes
- Category group membership
- em_group em_map_group
- Used in current PDB entries
- No
Category Relationship Diagrams 
View full category relationship diagram including all dictionary data categories
Category Description
Data items in the EM_MAP_EIGENVALUES category record details
about values of the eigenvectors for projection sets.
2d projection images are considered as a linear combination of
the main eigenvectors 'eigenimages' of the projection set,
enabling a reduction of the total amount of data and simplifying
its interpretation. The eigenvalue spectrum gives an indication
of the randomness of the data that is included in the reconstruction.
The completeness of the data can be verified eg all eigenvalues exceeded 1.0.
Category Example
_em_map_eigenvalues.id 1 _em_map_eigenvalues.map_id 1 _em_map_eigenvalues.number_eigenimages . _em_map_eigenvalues.details . _em_map_eigenvalues.spectrum . _em_map_eigenvalues.min_value . _em_map_eigenvalues.max_value .
