Data Item _refine.ls_matrix_type
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General 
- Item name
- _refine.ls_matrix_type
- Category name
- refine
- Attribute name
- ls_matrix_type
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 0.02 % of entries
Item Description
Type of matrix used to accumulate the least-squares derivatives.
Data Type 
- Data type code
- ucode
- Data type detail
- code item types/single words (case insensitive) ...
- Primitive data type code
- uchar
- Regular expression
- [_,.;:"&<>()/\{}'`~!@#$%A-Za-z0-9*|+-]*
Controlled Vocabulary
| Allowed Value | Details |
|---|---|
| atomblock | block diagonal per atom |
| diagonal | diagonal elements only |
| full | full |
| fullcycle | full with fixed elements per cycle |
| sparse | selected elements only |
| userblock | user-defined blocks |
Controlled Vocabulary at Deposition
| Allowed Value | Details |
|---|---|
| atomblock | block diagonal per atom |
| diagonal | diagonal elements only |
| full | full |
| fullcycle | full with fixed elements per cycle |
| sparse | selected elements only |
| userblock | user-defined blocks |
Aliases
| Alias Item Name | Dictionary Name | Dictionary Version |
|---|---|---|
| _refine_ls_matrix_type | cif_core.dic | 2.0.1 |