Data Item _pdbx_refine.R_factor_obs_4sig_cutoff
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General 
- Item name
- _pdbx_refine.R_factor_obs_4sig_cutoff
- Category name
- pdbx_refine
- Attribute name
- R_factor_obs_4sig_cutoff
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 0.9 % of entries
Item Description
R-value (working set, 4 sigma cutoff)
Placeholder for PDB mapping of SHELXL refinement data.
Item Example
0.169
Data Type 
- Data type code
- float
- Data type detail
- float item types are the subset of numbers that are the floating numbers.
- Primitive data type code
- numb
- Regular expression
- -?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?
Aliases
| Alias Item Name | Dictionary Name | Dictionary Version |
|---|---|---|
| _ndb_refine.R_factor_obs_4sig_cutoff | cif_rcsb.dic | 1.1 |