Data Item _refine.ls_R_factor_gt
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General 
- Item name
- _refine.ls_R_factor_gt
- Category name
- refine
- Attribute name
- ls_R_factor_gt
- Required in PDB entries
- no
- Used in currrent PDB entries
- No
Item Description
Residual factor for the reflections (with number given by
_reflns.number_gt) judged significantly intense (i.e. satisfying
the threshold specified by _reflns.threshold_expression)
and included in the refinement. The reflections also satisfy
the resolution limits established by _refine.ls_d_res_high and
_refine.ls_d_res_low. This is the conventional R
factor. See also _refine.ls_wR_factor_ definitions.
sum | F(obs) - F(calc) |
R = ------------------------
sum | F(obs) |
F(obs) = the observed structure-factor amplitudes
F(calc) = the calculated structure-factor amplitudes
and the sum is taken over the specified reflections
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]+)?
Allowed Boundary Conditions
| Minimum Value | Maximum Value |
|---|---|
| 0.0 | +∞ |
Related Items 
| Related Item Name | Relation Type |
|---|---|
| _refine.ls_R_factor_obs | alternate |
Aliases
| Alias Item Name | Dictionary Name | Dictionary Version |
|---|---|---|
| _refine_ls_R_factor_gt | cif_core.dic | 2.3 |