Data Item _refine_ls_shell.R_factor_R_free_error
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General 
- Item name
- _refine_ls_shell.R_factor_R_free_error
- Category name
- refine_ls_shell
- Attribute name
- R_factor_R_free_error
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 17.9 % of entries
Item Description
The estimated error in _refine_ls_shell.R_factor_R_free.
The method used to estimate the error is described in the
item _refine.ls_R_factor_R_free_error_details.
Additional Descriptive Information for Depositors
Within the indicated shell, the estimated error of R-free
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]+)?
Related Items 
| Related Item Name | Relation Type |
|---|---|
| _refine_ls_shell.R_factor_R_free | associated_value |